diff --git a/src/openrct2-ui/windows/About.cpp b/src/openrct2-ui/windows/About.cpp
index 97f4fd5f4b..46c88c3b5d 100644
--- a/src/openrct2-ui/windows/About.cpp
+++ b/src/openrct2-ui/windows/About.cpp
@@ -16,9 +16,9 @@
 #include <openrct2/localisation/LocalisationService.h>
 #include <openrct2/sprites.h>
 
-#define WW 400
-#define WH 350
-#define TABHEIGHT 50
+constexpr int32_t WW = 400;
+constexpr int32_t WH = 350;
+constexpr int32_t TABHEIGHT = 50;
 
 // clang-format off
 enum
diff --git a/src/openrct2-ui/windows/Banner.cpp b/src/openrct2-ui/windows/Banner.cpp
index 07044a6261..c2cd216a7b 100644
--- a/src/openrct2-ui/windows/Banner.cpp
+++ b/src/openrct2-ui/windows/Banner.cpp
@@ -22,8 +22,8 @@
 #include <openrct2/world/Banner.h>
 #include <openrct2/world/Scenery.h>
 
-#define WW 113
-#define WH 96
+constexpr int32_t WW = 113;
+constexpr int32_t WH = 96;
 
 // clang-format off
 enum WINDOW_BANNER_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/Changelog.cpp b/src/openrct2-ui/windows/Changelog.cpp
index 5eac72354b..31264ed571 100644
--- a/src/openrct2-ui/windows/Changelog.cpp
+++ b/src/openrct2-ui/windows/Changelog.cpp
@@ -32,10 +32,10 @@ enum {
     WIDX_SCROLL
 };
 
-#define WW 500
-#define WH 400
-#define MIN_WW 300
-#define MIN_WH 200
+constexpr int32_t WW = 500;
+constexpr int32_t WH = 400;
+constexpr int32_t MIN_WW = 300;
+constexpr int32_t MIN_WH = 200;
 
 static rct_widget window_changelog_widgets[] = {
     { WWT_FRAME,            0,  0,          WW - 1, 0,      WH - 1,     0xFFFFFFFF,                     STR_NONE },             // panel / background
diff --git a/src/openrct2-ui/windows/Cheats.cpp b/src/openrct2-ui/windows/Cheats.cpp
index 01e0f79552..156ec11d85 100644
--- a/src/openrct2-ui/windows/Cheats.cpp
+++ b/src/openrct2-ui/windows/Cheats.cpp
@@ -175,18 +175,18 @@ enum WINDOW_CHEATS_WIDGET_IDX
 
 #pragma region MEASUREMENTS
 
-#define WW              249
-#define WH              300
-#define TAB_HEIGHT      43
-#define XSPA            5                                               // X spacing
-#define YSPA            5                                               // Y spacing
-#define XOS             6 + XSPA                                        // X offset from left
-#define YOS             TAB_HEIGHT + YSPA                               // Y offset from top (includes tabs height)
-#define BTNW            110                                             // button width
-#define BTNH            16                                              // button height
-#define OPTW            220                                             // Option (checkbox) width (two columns)
-#define OPTH            10                                              // Option (checkbox) height (two columns)
-#define GROUP_SPACE     6
+constexpr int32_t WW = 249;
+constexpr int32_t WH = 300;
+constexpr int32_t TAB_HEIGHT = 43;
+constexpr int32_t XSPA = 5;                                              // X spacing
+constexpr int32_t YSPA = 5;                                              // Y spacing
+constexpr int32_t XOS = 6 + XSPA;                                        // X offset from left
+constexpr int32_t YOS = TAB_HEIGHT + YSPA;                               // Y offset from top (includes tabs height)
+constexpr int32_t BTNW = 110;                                            // button width
+constexpr int32_t BTNH = 16;                                             // button height
+constexpr int32_t OPTW = 220;                                            // Option (checkbox) width (two columns)
+constexpr int32_t OPTH = 10;                                             // Option (checkbox) height (two columns)
+constexpr int32_t GROUP_SPACE = 6;
 
 #define YPL(ROW)        ((int16_t)(YOS + ((BTNH + YSPA) * ROW)))
 #define HPL(ROW)        ((int16_t)(YPL(ROW) + BTNH))
@@ -200,7 +200,7 @@ enum WINDOW_CHEATS_WIDGET_IDX
 #define MAX_BTN_LEFT    ((int16_t)(XPL(1.5)))
 #define MAX_BTN_RIGHT   ((int16_t)(WPL(1)))
 
-#define TXTO 3  // Text horizontal offset from button left (for button text)
+constexpr int32_t TXTO = 3;  // Text horizontal offset from button left (for button text)
 #pragma endregion
 
 #define MAIN_CHEATS_WIDGETS \
diff --git a/src/openrct2-ui/windows/DebugPaint.cpp b/src/openrct2-ui/windows/DebugPaint.cpp
index 412ff6a5ba..a36432ba6e 100644
--- a/src/openrct2-ui/windows/DebugPaint.cpp
+++ b/src/openrct2-ui/windows/DebugPaint.cpp
@@ -32,8 +32,8 @@ enum WINDOW_DEBUG_PAINT_WIDGET_IDX
     WIDX_TOGGLE_SHOW_DIRTY_VISUALS,
 };
 
-#define WINDOW_WIDTH    (200)
-#define WINDOW_HEIGHT   (8 + 15 + 15 + 15 + 15 + 11 + 8)
+constexpr int32_t WINDOW_WIDTH = 200;
+constexpr int32_t WINDOW_HEIGHT = 8 + 15 + 15 + 15 + 15 + 11 + 8;
 
 static rct_widget window_debug_paint_widgets[] = {
     { WWT_FRAME,    0,  0,  WINDOW_WIDTH - 1,   0,              WINDOW_HEIGHT - 1,  STR_NONE,                               STR_NONE },
diff --git a/src/openrct2-ui/windows/DemolishRidePrompt.cpp b/src/openrct2-ui/windows/DemolishRidePrompt.cpp
index 8b652c69b6..058ddb1e18 100644
--- a/src/openrct2-ui/windows/DemolishRidePrompt.cpp
+++ b/src/openrct2-ui/windows/DemolishRidePrompt.cpp
@@ -16,8 +16,8 @@
 #include <openrct2/windows/Intent.h>
 #include <openrct2/world/Park.h>
 
-#define WW 200
-#define WH 100
+constexpr int32_t WW = 200;
+constexpr int32_t WH = 100;
 
 static money32 _demolishRideCost;
 
diff --git a/src/openrct2-ui/windows/Dropdown.cpp b/src/openrct2-ui/windows/Dropdown.cpp
index d63e0fc712..2a5bfd9280 100644
--- a/src/openrct2-ui/windows/Dropdown.cpp
+++ b/src/openrct2-ui/windows/Dropdown.cpp
@@ -18,9 +18,9 @@
 #include <openrct2/sprites.h>
 
 // The maximum number of rows to list before items overflow into new columns
-#define DROPDOWN_TEXT_MAX_ROWS 32
+constexpr int32_t DROPDOWN_TEXT_MAX_ROWS = 32;
 
-#define DROPDOWN_ITEM_HEIGHT 12
+constexpr int32_t DROPDOWN_ITEM_HEIGHT = 12;
 
 int32_t gAppropriateImageDropdownItemsPerRow[] = {
     1, 1, 1, 1, 2, 2, 3, 3, 4, 3, 5, 4, 4, 5, 5, 5, 4, 5, 6, 5, 5, 7, 4, 5, 6, 5, 6, 6, 6, 6, 6, 8, 8, 0,
diff --git a/src/openrct2-ui/windows/EditorInventionsList.cpp b/src/openrct2-ui/windows/EditorInventionsList.cpp
index 92e9bf4d16..533fb5ddf3 100644
--- a/src/openrct2-ui/windows/EditorInventionsList.cpp
+++ b/src/openrct2-ui/windows/EditorInventionsList.cpp
@@ -26,8 +26,8 @@
 
 #pragma region Widgets
 
-#define WW 600
-#define WH 400
+constexpr int32_t WW = 600;
+constexpr int32_t WH = 400;
 
 // clang-format off
 enum {
diff --git a/src/openrct2-ui/windows/InstallTrack.cpp b/src/openrct2-ui/windows/InstallTrack.cpp
index 204dcc0569..4556c8a041 100644
--- a/src/openrct2-ui/windows/InstallTrack.cpp
+++ b/src/openrct2-ui/windows/InstallTrack.cpp
@@ -34,11 +34,11 @@ enum {
     WIDX_CANCEL
 };
 
-#define WW 380
-#define WH 448
-#define WW_LESS_PADDING (WW - 4)
-#define PREVIEW_BUTTONS_LEFT (WW - 25)
-#define ACTION_BUTTONS_LEFT (WW - 100)
+constexpr int32_t WW = 380;
+constexpr int32_t WH = 448;
+constexpr int32_t WW_LESS_PADDING = WW - 4;
+constexpr int32_t PREVIEW_BUTTONS_LEFT = WW - 25;
+constexpr int32_t ACTION_BUTTONS_LEFT = WW - 100;
 
 static rct_widget window_install_track_widgets[] = {
     { WWT_FRAME,            0,  0,                      WW - 1,             0,      WH-1,   STR_NONE,                               STR_NONE                },
diff --git a/src/openrct2-ui/windows/LandRights.cpp b/src/openrct2-ui/windows/LandRights.cpp
index 147945ebf7..287823a0f4 100644
--- a/src/openrct2-ui/windows/LandRights.cpp
+++ b/src/openrct2-ui/windows/LandRights.cpp
@@ -91,8 +91,8 @@ static rct_window_event_list window_land_rights_events = {
 };
 // clang-format on
 
-#define LAND_RIGHTS_MODE_BUY_CONSTRUCTION_RIGHTS 0
-#define LAND_RIGHTS_MODE_BUY_LAND 1
+constexpr uint8_t LAND_RIGHTS_MODE_BUY_CONSTRUCTION_RIGHTS = 0;
+constexpr uint8_t LAND_RIGHTS_MODE_BUY_LAND = 1;
 
 static uint8_t _landRightsMode;
 static money32 _landRightsCost;
diff --git a/src/openrct2-ui/windows/LoadSave.cpp b/src/openrct2-ui/windows/LoadSave.cpp
index d3a57e9206..d4e9dc2c4e 100644
--- a/src/openrct2-ui/windows/LoadSave.cpp
+++ b/src/openrct2-ui/windows/LoadSave.cpp
@@ -38,8 +38,8 @@
 
 #pragma region Widgets
 
-#define WW 340
-#define WH 400
+constexpr int32_t WW = 340;
+constexpr int32_t WH = 400;
 
 // clang-format off
 enum
@@ -1115,8 +1115,8 @@ static void window_loadsave_select(rct_window* w, const char* path)
 
 #pragma region Overwrite prompt
 
-#define OVERWRITE_WW 200
-#define OVERWRITE_WH 100
+constexpr int32_t OVERWRITE_WW = 200;
+constexpr int32_t OVERWRITE_WH = 100;
 
 enum
 {
diff --git a/src/openrct2-ui/windows/Map.cpp b/src/openrct2-ui/windows/Map.cpp
index f402789e4c..5fcbd7fa07 100644
--- a/src/openrct2-ui/windows/Map.cpp
+++ b/src/openrct2-ui/windows/Map.cpp
@@ -34,7 +34,7 @@
 #define MAP_COLOUR(colour) MAP_COLOUR_2(colour, colour)
 #define MAP_COLOUR_UNOWNED(colour) (PALETTE_INDEX_10 | ((colour)&0xFF00))
 
-#define MAP_WINDOW_MAP_SIZE (MAXIMUM_MAP_SIZE_TECHNICAL * 2)
+constexpr int32_t MAP_WINDOW_MAP_SIZE = MAXIMUM_MAP_SIZE_TECHNICAL * 2;
 
 // Some functions manipulate coordinates on the map. These are the coordinates of the pixels in the
 // minimap. In order to distinguish those from actual coordinates, we use a separate name.
diff --git a/src/openrct2-ui/windows/MapGen.cpp b/src/openrct2-ui/windows/MapGen.cpp
index 4f8e39edd1..646f150b4a 100644
--- a/src/openrct2-ui/windows/MapGen.cpp
+++ b/src/openrct2-ui/windows/MapGen.cpp
@@ -110,8 +110,8 @@ enum {
 
 #pragma region Widgets
 
-#define WW 250
-#define WH 273
+constexpr int32_t WW = 250;
+constexpr int32_t WH = 273;
 
 #define SHARED_WIDGETS \
     { WWT_FRAME,    0,  0,          WW - 1, 0,  WH - 1, 0xFFFFFFFF,                 STR_NONE },             /* WIDX_BACKGROUND */ \
@@ -490,11 +490,11 @@ static constexpr const int32_t TabAnimationLoops[WINDOW_MAPGEN_PAGE_COUNT] = {
 };
 // clang-format on
 
-#define BASESIZE_MIN 0
-#define BASESIZE_MAX 60
-#define WATERLEVEL_MIN 0
-#define WATERLEVEL_MAX 54
-#define MAX_SMOOTH_ITERATIONS 20
+constexpr int32_t BASESIZE_MIN = 0;
+constexpr int32_t BASESIZE_MAX = 60;
+constexpr int32_t WATERLEVEL_MIN = 0;
+constexpr int32_t WATERLEVEL_MAX = 54;
+constexpr int32_t MAX_SMOOTH_ITERATIONS = 20;
 
 static void window_mapgen_set_page(rct_window* w, int32_t page);
 static void window_mapgen_set_pressed_tab(rct_window* w);
diff --git a/src/openrct2-ui/windows/Network.cpp b/src/openrct2-ui/windows/Network.cpp
index 9371195c70..a95a9dc421 100644
--- a/src/openrct2-ui/windows/Network.cpp
+++ b/src/openrct2-ui/windows/Network.cpp
@@ -26,8 +26,8 @@ enum {
     WINDOW_NETWORK_PAGE_INFORMATION,
 };
 
-#define WW 450
-#define WH 210
+constexpr int32_t WW = 450;
+constexpr int32_t WH = 210;
 
 enum WINDOW_NETWORK_WIDGET_IDX {
     WIDX_BACKGROUND,
diff --git a/src/openrct2-ui/windows/NewCampaign.cpp b/src/openrct2-ui/windows/NewCampaign.cpp
index 9397f80000..596fdb5b20 100644
--- a/src/openrct2-ui/windows/NewCampaign.cpp
+++ b/src/openrct2-ui/windows/NewCampaign.cpp
@@ -20,7 +20,7 @@
 #include <openrct2/ride/RideData.h>
 #include <openrct2/ride/ShopItem.h>
 
-#define SELECTED_RIDE_UNDEFINED ((uint16_t)0xFFFF)
+constexpr uint16_t SELECTED_RIDE_UNDEFINED = 0xFFFF;
 
 // clang-format off
 enum WINDOW_NEW_CAMPAIGN_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/NewRide.cpp b/src/openrct2-ui/windows/NewRide.cpp
index 4867a9368f..6815ce2c11 100644
--- a/src/openrct2-ui/windows/NewRide.cpp
+++ b/src/openrct2-ui/windows/NewRide.cpp
@@ -33,9 +33,9 @@
 #include <openrct2/windows/Intent.h>
 #include <openrct2/world/Park.h>
 
-#define AVAILABILITY_STRING_SIZE 256
-#define WH 382
-#define WW 601
+constexpr size_t AVAILABILITY_STRING_SIZE = 256;
+constexpr int32_t WH = 382;
+constexpr int32_t WW = 601;
 
 static uint8_t _windowNewRideCurrentTab;
 static ride_list_item _windowNewRideHighlightedItem[6];
diff --git a/src/openrct2-ui/windows/ObjectLoadError.cpp b/src/openrct2-ui/windows/ObjectLoadError.cpp
index fb742d845a..84fbecbcc8 100644
--- a/src/openrct2-ui/windows/ObjectLoadError.cpp
+++ b/src/openrct2-ui/windows/ObjectLoadError.cpp
@@ -263,13 +263,12 @@ enum WINDOW_OBJECT_LOAD_ERROR_WIDGET_IDX {
     WIDX_DOWNLOAD_ALL
 };
 
-#define WW 450
-#define WH 400
-#define WW_LESS_PADDING (WW - 5)
-#define NAME_COL_LEFT 4
-#define SOURCE_COL_LEFT ((WW_LESS_PADDING / 4) + 1)
-#define TYPE_COL_LEFT (5 * WW_LESS_PADDING / 8 + 1)
-#define LIST_ITEM_HEIGHT 10
+constexpr int32_t WW = 450;
+constexpr int32_t WH = 400;
+constexpr int32_t WW_LESS_PADDING = WW - 5;
+constexpr int32_t NAME_COL_LEFT = 4;
+constexpr int32_t SOURCE_COL_LEFT = (WW_LESS_PADDING / 4) + 1;
+constexpr int32_t TYPE_COL_LEFT = 5 * WW_LESS_PADDING / 8 + 1;
 
 static rct_widget window_object_load_error_widgets[] = {
     { WWT_FRAME,             0, 0,               WW - 1,                0,          WH - 1,     STR_NONE,                       STR_NONE },                // Background
diff --git a/src/openrct2-ui/windows/Options.cpp b/src/openrct2-ui/windows/Options.cpp
index 20411fa7db..cb6f777e21 100644
--- a/src/openrct2-ui/windows/Options.cpp
+++ b/src/openrct2-ui/windows/Options.cpp
@@ -197,8 +197,8 @@ enum WINDOW_OPTIONS_WIDGET_IDX {
     WIDX_NEWS_CHECKBOX
 };
 
-#define WW          310
-#define WH          332
+constexpr int32_t WW = 310;
+constexpr int32_t WH = 332;
 
 #ifndef DISABLE_TWITCH
     #define TWITCH_TAB_SPRITE   IMAGE_TYPE_REMAP | SPR_TAB
diff --git a/src/openrct2-ui/windows/Ride.cpp b/src/openrct2-ui/windows/Ride.cpp
index 8dcab81a9b..ff3923ae52 100644
--- a/src/openrct2-ui/windows/Ride.cpp
+++ b/src/openrct2-ui/windows/Ride.cpp
@@ -202,7 +202,7 @@ enum {
     WIDX_SHOW_GUESTS_QUEUING
 };
 
-#define RCT1_LIGHT_OFFSET 4
+constexpr int32_t RCT1_LIGHT_OFFSET = 4;
 
 #define MAIN_RIDE_WIDGETS \
     { WWT_FRAME,            0,  0,      315,    0,      206,    0xFFFFFFFF,                     STR_NONE                                    }, \
diff --git a/src/openrct2-ui/windows/Scenery.cpp b/src/openrct2-ui/windows/Scenery.cpp
index ecce651315..3f09049407 100644
--- a/src/openrct2-ui/windows/Scenery.cpp
+++ b/src/openrct2-ui/windows/Scenery.cpp
@@ -26,11 +26,11 @@
 #include <openrct2/world/Scenery.h>
 #include <openrct2/world/SmallScenery.h>
 
-#define WINDOW_SCENERY_WIDTH 634
-#define WINDOW_SCENERY_HEIGHT 180
-#define SCENERY_BUTTON_WIDTH 66
-#define SCENERY_BUTTON_HEIGHT 80
-#define SCENERY_WINDOW_TABS (MAX_SCENERY_GROUP_OBJECTS + 1) // The + 1 is for the 'Miscellaneous' tab
+constexpr int32_t WINDOW_SCENERY_WIDTH = 634;
+constexpr int32_t WINDOW_SCENERY_HEIGHT = 180;
+constexpr int32_t SCENERY_BUTTON_WIDTH = 66;
+constexpr int32_t SCENERY_BUTTON_HEIGHT = 80;
+constexpr int32_t SCENERY_WINDOW_TABS = MAX_SCENERY_GROUP_OBJECTS + 1; // The + 1 is for the 'Miscellaneous' tab
 
 // clang-format off
 enum {
diff --git a/src/openrct2-ui/windows/ServerStart.cpp b/src/openrct2-ui/windows/ServerStart.cpp
index b08a5f8dd1..bde8d2b8b1 100644
--- a/src/openrct2-ui/windows/ServerStart.cpp
+++ b/src/openrct2-ui/windows/ServerStart.cpp
@@ -46,8 +46,8 @@ enum {
     WIDX_LOAD_SERVER
 };
 
-#define WW 300
-#define WH 154
+constexpr int32_t WW = 300;
+constexpr int32_t WH = 154;
 
 static rct_widget window_server_start_widgets[] = {
     { WWT_FRAME,            0,  0,      WW-1,   0,          WH-1,   STR_NONE,                       STR_NONE },                 // panel / background
diff --git a/src/openrct2-ui/windows/ShortcutKeyChange.cpp b/src/openrct2-ui/windows/ShortcutKeyChange.cpp
index 9989b1c0b7..9393cf6ace 100644
--- a/src/openrct2-ui/windows/ShortcutKeyChange.cpp
+++ b/src/openrct2-ui/windows/ShortcutKeyChange.cpp
@@ -15,8 +15,8 @@
 #include <openrct2/drawing/Drawing.h>
 #include <openrct2/localisation/Localisation.h>
 
-#define WW 250
-#define WH 60
+constexpr int32_t WW = 250;
+constexpr int32_t WH = 60;
 
 // clang-format off
 enum WINDOW_SHORTCUT_CHANGE_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/ShortcutKeys.cpp b/src/openrct2-ui/windows/ShortcutKeys.cpp
index 47aae89092..9854f47268 100644
--- a/src/openrct2-ui/windows/ShortcutKeys.cpp
+++ b/src/openrct2-ui/windows/ShortcutKeys.cpp
@@ -15,11 +15,11 @@
 #include <openrct2/drawing/Drawing.h>
 #include <openrct2/localisation/Localisation.h>
 
-#define WW 420
-#define WH 280
+constexpr int32_t WW = 420;
+constexpr int32_t WH = 280;
 
-#define WW_SC_MAX 1200
-#define WH_SC_MAX 800
+constexpr int32_t WW_SC_MAX = 1200;
+constexpr int32_t WH_SC_MAX = 800;
 
 // clang-format off
 enum WINDOW_SHORTCUT_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/Sign.cpp b/src/openrct2-ui/windows/Sign.cpp
index 6eb04610c6..175627f562 100644
--- a/src/openrct2-ui/windows/Sign.cpp
+++ b/src/openrct2-ui/windows/Sign.cpp
@@ -25,8 +25,8 @@
 #include <openrct2/world/Scenery.h>
 #include <openrct2/world/Wall.h>
 
-#define WW 113
-#define WH 96
+constexpr int32_t WW = 113;
+constexpr int32_t WH = 96;
 
 // clang-format off
 enum WINDOW_SIGN_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/Staff.cpp b/src/openrct2-ui/windows/Staff.cpp
index 8b28da26bb..62b0227b1d 100644
--- a/src/openrct2-ui/windows/Staff.cpp
+++ b/src/openrct2-ui/windows/Staff.cpp
@@ -31,8 +31,8 @@
 #include <openrct2/world/Park.h>
 #include <openrct2/world/Sprite.h>
 
-#define WW 190
-#define WH 180
+constexpr int32_t WW = 190;
+constexpr int32_t WH = 180;
 
 // clang-format off
 enum WINDOW_STAFF_PAGE {
diff --git a/src/openrct2-ui/windows/StaffFirePrompt.cpp b/src/openrct2-ui/windows/StaffFirePrompt.cpp
index 439e6c2a48..21af27cc8c 100644
--- a/src/openrct2-ui/windows/StaffFirePrompt.cpp
+++ b/src/openrct2-ui/windows/StaffFirePrompt.cpp
@@ -16,8 +16,8 @@
 #include <openrct2/localisation/Localisation.h>
 #include <openrct2/world/Sprite.h>
 
-#define WW 200
-#define WH 100
+constexpr int32_t WW = 200;
+constexpr int32_t WH = 100;
 
 // clang-format off
 enum WINDOW_STAFF_FIRE_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/StaffList.cpp b/src/openrct2-ui/windows/StaffList.cpp
index 361c6a82d3..0747509dbd 100644
--- a/src/openrct2-ui/windows/StaffList.cpp
+++ b/src/openrct2-ui/windows/StaffList.cpp
@@ -102,10 +102,10 @@ enum WINDOW_STAFF_LIST_WIDGET_IDX {
     WIDX_STAFF_LIST_MAP,
 };
 
-#define WW 320
-#define WH 270
-#define MAX_WW 500
-#define MAX_WH 450
+constexpr int32_t WW = 320;
+constexpr int32_t WH = 270;
+constexpr int32_t MAX_WW = 500;
+constexpr int32_t MAX_WH = 450;
 
 static rct_widget window_staff_list_widgets[] = {
     { WWT_FRAME,            0,  0,          319,        0,      269,    0xFFFFFFFF,         STR_NONE },                         // panel / background
diff --git a/src/openrct2-ui/windows/TextInput.cpp b/src/openrct2-ui/windows/TextInput.cpp
index be30cbfefb..3cc21b2f04 100644
--- a/src/openrct2-ui/windows/TextInput.cpp
+++ b/src/openrct2-ui/windows/TextInput.cpp
@@ -25,8 +25,8 @@
 #include <openrct2/localisation/Localisation.h>
 #include <openrct2/util/Util.h>
 
-#define WW 250
-#define WH 90
+constexpr int32_t WW = 250;
+constexpr int32_t WH = 90;
 
 // clang-format off
 enum WINDOW_TEXT_INPUT_WIDGET_IDX {
diff --git a/src/openrct2-ui/windows/TileInspector.cpp b/src/openrct2-ui/windows/TileInspector.cpp
index 06e8a0244f..09a33bbf51 100644
--- a/src/openrct2-ui/windows/TileInspector.cpp
+++ b/src/openrct2-ui/windows/TileInspector.cpp
@@ -200,33 +200,33 @@ enum WINDOW_TILE_INSPECTOR_WIDGET_IDX {
 };
 
 // Window sizes
-#define WW 400
-#define WH 170
-#define MIN_WW WW
-#define MAX_WW WW
-#define MIN_WH 130
-#define MAX_WH 800
+constexpr int32_t WW = 400;
+constexpr int32_t WH = 170;
+constexpr int32_t MIN_WW = WW;
+constexpr int32_t MAX_WW = WW;
+constexpr int32_t MIN_WH = 130;
+constexpr int32_t MAX_WH = 800;
 
 // Button space for top buttons
-#define BW (WW - 5)     // Button's right side
-#define BX (BW - 23)    // Button's left side
-#define BY 17           // Button's Top
-#define BH (BY + 23)    // Button's Bottom
-#define BS 24
+constexpr int32_t BW = WW - 5;     // Button's right side
+constexpr int32_t BX = BW - 23;    // Button's left side
+constexpr int32_t BY = 17;         // Button's Top
+constexpr int32_t BH = BY + 23;    // Button's Bottom
+constexpr int32_t BS = 24;
 
 // Column offsets for the table headers
-#define COL_X_TYPE 3                    // Type
-#define COL_X_BH   (COL_X_TYPE + 312)   // Base height
-#define COL_X_CH   (COL_X_BH + 20)      // Clearance height
-#define COL_X_GF   (COL_X_CH + 20)      // Ghost flag
-#define COL_X_LF   (COL_X_GF + 12)      // Last for tile flag
+constexpr int32_t COL_X_TYPE = 3;                // Type
+constexpr int32_t COL_X_BH = COL_X_TYPE + 312;   // Base height
+constexpr int32_t COL_X_CH = COL_X_BH + 20;      // Clearance height
+constexpr int32_t COL_X_GF = COL_X_CH + 20;      // Ghost flag
+constexpr int32_t COL_X_LF = COL_X_GF + 12;      // Last for tile flag
 
-#define PADDING_BOTTOM 15
-#define GROUPBOX_PADDING 6
-#define HORIZONTAL_GROUPBOX_PADDING 5
-#define VERTICAL_GROUPBOX_PADDING 4
-#define BUTTONW 130
-#define BUTTONH 17
+constexpr int32_t PADDING_BOTTOM = 15;
+constexpr int32_t GROUPBOX_PADDING = 6;
+constexpr int32_t HORIZONTAL_GROUPBOX_PADDING = 5;
+constexpr int32_t VERTICAL_GROUPBOX_PADDING = 4;
+constexpr int32_t BUTTONW = 130;
+constexpr int32_t BUTTONH = 17;
 
 // Calculates the .left, .right, .top and .bottom for buttons in a group box.
 // Buttons are used as reference points for all other widgets in the group boxes.
@@ -275,10 +275,10 @@ static rct_widget DefaultWidgets[] = {
 };
 
 // Group boxes .top and .bottom for a given window height offsets from the bottom
-#define SUR_GBPB PADDING_BOTTOM                 // Surface group box properties bottom
-#define SUR_GBPT (SUR_GBPB + 16 + 4 * 21)       // Surface group box properties top
-#define SUR_GBDB (SUR_GBPT + GROUPBOX_PADDING)  // Surface group box details bottom
-#define SUR_GBDT (SUR_GBDB + 20 + 4 * 11)       // Surface group box details top
+constexpr int32_t SUR_GBPB = PADDING_BOTTOM;               // Surface group box properties bottom
+constexpr int32_t SUR_GBPT = SUR_GBPB + 16 + 4 * 21;       // Surface group box properties top
+constexpr int32_t SUR_GBDB = SUR_GBPT + GROUPBOX_PADDING;  // Surface group box details bottom
+constexpr int32_t SUR_GBDT = SUR_GBDB + 20 + 4 * 11;       // Surface group box details top
 static rct_widget SurfaceWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - SUR_GBPT, 0) + 3, GBBB(WH - SUR_GBPT, 0) - 3,   STR_NONE, STR_NONE),  // WIDX_SURFACE_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
@@ -292,10 +292,10 @@ static rct_widget SurfaceWidgets[] = {
     { WIDGETS_END },
 };
 
-#define PAT_GBPB PADDING_BOTTOM                 // Path group box properties bottom
-#define PAT_GBPT (PAT_GBPB + 16 + 5 * 21)       // Path group box properties top
-#define PAT_GBDB (PAT_GBPT + GROUPBOX_PADDING)  // Path group box info bottom
-#define PAT_GBDT (PAT_GBDB + 20 + 2 * 11)       // Path group box info top
+constexpr int32_t PAT_GBPB = PADDING_BOTTOM;               // Path group box properties bottom
+constexpr int32_t PAT_GBPT = PAT_GBPB + 16 + 5 * 21;       // Path group box properties top
+constexpr int32_t PAT_GBDB = PAT_GBPT + GROUPBOX_PADDING;  // Path group box info bottom
+constexpr int32_t PAT_GBDT = PAT_GBDB + 20 + 2 * 11;       // Path group box info top
 static rct_widget PathWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - PAT_GBPT, 0) + 3, GBBB(WH - PAT_GBPT, 0) - 3,  STR_NONE,  STR_NONE),  // WIDX_PATH_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
@@ -312,10 +312,10 @@ static rct_widget PathWidgets[] = {
     { WIDGETS_END },
 };
 
-#define TRA_GBPB PADDING_BOTTOM                 // Track group box properties bottom
-#define TRA_GBPT (TRA_GBPB + 16 + 5 * 21)       // Track group box properties top
-#define TRA_GBDB (TRA_GBPT + GROUPBOX_PADDING)  // Track group box info bottom
-#define TRA_GBDT (TRA_GBDB + 20 + 7 * 11)       // Track group box info top
+constexpr int32_t TRA_GBPB = PADDING_BOTTOM;               // Track group box properties bottom
+constexpr int32_t TRA_GBPT = TRA_GBPB + 16 + 5 * 21;       // Track group box properties top
+constexpr int32_t TRA_GBDB = TRA_GBPT + GROUPBOX_PADDING;  // Track group box info bottom
+constexpr int32_t TRA_GBDT = TRA_GBDB + 20 + 7 * 11;       // Track group box info top
 static rct_widget TrackWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
     { WWT_CHECKBOX,         1,  GBBF(WH - TRA_GBPT, 0, 0),  STR_TILE_INSPECTOR_TRACK_ENTIRE_TRACK_PIECE,    STR_NONE }, // WIDX_TRACK_CHECK_APPLY_TO_ALL
@@ -326,10 +326,10 @@ static rct_widget TrackWidgets[] = {
     { WIDGETS_END },
 };
 
-#define SCE_GBPB PADDING_BOTTOM                 // Scenery group box properties bottom
-#define SCE_GBPT (SCE_GBPB + 16 + 4 * 21)       // Scenery group box properties top
-#define SCE_GBDB (SCE_GBPT + GROUPBOX_PADDING)  // Scenery group box info bottom
-#define SCE_GBDT (SCE_GBDB + 20 + 3 * 11)       // Scenery group box info top
+constexpr int32_t SCE_GBPB = PADDING_BOTTOM;               // Scenery group box properties bottom
+constexpr int32_t SCE_GBPT = SCE_GBPB + 16 + 4 * 21;       // Scenery group box properties top
+constexpr int32_t SCE_GBDB = SCE_GBPT + GROUPBOX_PADDING;  // Scenery group box info bottom
+constexpr int32_t SCE_GBDT = SCE_GBDB + 20 + 3 * 11;       // Scenery group box info top
 static rct_widget SceneryWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - SCE_GBPT, 0) + 3, GBBB(WH - SCE_GBPT, 0) - 3,  STR_NONE,   STR_NONE),  // WIDX_SCENERY_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
@@ -345,10 +345,10 @@ static rct_widget SceneryWidgets[] = {
 };
 
 
-#define ENT_GBPB PADDING_BOTTOM                 // Entrance group box properties bottom
-#define ENT_GBPT (ENT_GBPB + 16 + 2 * 21)       // Entrance group box properties top
-#define ENT_GBDB (ENT_GBPT + GROUPBOX_PADDING)  // Entrance group box info bottom
-#define ENT_GBDT (ENT_GBDB + 20 + 4 * 11)       // Entrance group box info top
+constexpr int32_t ENT_GBPB = PADDING_BOTTOM;               // Entrance group box properties bottom
+constexpr int32_t ENT_GBPT = ENT_GBPB + 16 + 2 * 21;       // Entrance group box properties top
+constexpr int32_t ENT_GBDB = ENT_GBPT + GROUPBOX_PADDING;  // Entrance group box info bottom
+constexpr int32_t ENT_GBDT = ENT_GBDB + 20 + 4 * 11;       // Entrance group box info top
 static rct_widget EntranceWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - ENT_GBPT, 0) + 3, GBBB(WH - ENT_GBPT, 0) - 3,   STR_NONE,  STR_NONE),  // WIDX_ENTRANCE_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
@@ -356,10 +356,10 @@ static rct_widget EntranceWidgets[] = {
     { WIDGETS_END },
 };
 
-#define WALL_GBPB PADDING_BOTTOM                    // Wall group box properties bottom
-#define WALL_GBPT (WALL_GBPB + 16 + 2 * 21)     // Wall group box properties top
-#define WALL_GBDB (WALL_GBPT + GROUPBOX_PADDING)    // Wall group box info bottom
-#define WALL_GBDT (WALL_GBDB + 20 + 2 * 11)     // Wall group box info top
+constexpr int32_t WALL_GBPB = PADDING_BOTTOM;                  // Wall group box properties bottom
+constexpr int32_t WALL_GBPT = WALL_GBPB + 16 + 2 * 21;         // Wall group box properties top
+constexpr int32_t WALL_GBDB = WALL_GBPT + GROUPBOX_PADDING;    // Wall group box info bottom
+constexpr int32_t WALL_GBDT = WALL_GBDB + 20 + 2 * 11;         // Wall group box info top
 static rct_widget WallWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - WALL_GBPT, 0) + 3, GBBB(WH - WALL_GBPT, 0) - 3, STR_NONE,  STR_NONE),  // WIDX_WALL_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
@@ -368,20 +368,20 @@ static rct_widget WallWidgets[] = {
     { WIDGETS_END },
 };
 
-#define LAR_GBPB PADDING_BOTTOM                 // Large scenery group box properties bottom
-#define LAR_GBPT (LAR_GBPB + 16 + 1 * 21)       // Large scenery group box properties top
-#define LAR_GBDB (LAR_GBPT + GROUPBOX_PADDING)  // Large scenery group box info bottom
-#define LAR_GBDT (LAR_GBDB + 20 + 3 * 11)       // Large scenery group box info top
+constexpr int32_t LAR_GBPB = PADDING_BOTTOM;               // Large scenery group box properties bottom
+constexpr int32_t LAR_GBPT = LAR_GBPB + 16 + 1 * 21;       // Large scenery group box properties top
+constexpr int32_t LAR_GBDB = LAR_GBPT + GROUPBOX_PADDING;  // Large scenery group box info bottom
+constexpr int32_t LAR_GBDT = LAR_GBDB + 20 + 3 * 11;       // Large scenery group box info top
 static rct_widget LargeSceneryWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - LAR_GBPT, 0) + 3, GBBB(WH - LAR_GBPT, 0) - 3,   STR_NONE,  STR_NONE),  // WIDX_LARGE_SCENERY_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
     { WIDGETS_END },
 };
 
-#define BAN_GBPB PADDING_BOTTOM                 // Banner group box properties bottom
-#define BAN_GBPT (BAN_GBPB + 16 + 3 * 21)       // Banner group box properties top
-#define BAN_GBDB (BAN_GBPT + GROUPBOX_PADDING)  // Banner group box info bottom
-#define BAN_GBDT (BAN_GBDB + 20 + 1 * 11)       // Banner group box info top
+constexpr int32_t BAN_GBPB = PADDING_BOTTOM;               // Banner group box properties bottom
+constexpr int32_t BAN_GBPT = BAN_GBPB + 16 + 3 * 21;       // Banner group box properties top
+constexpr int32_t BAN_GBDB = BAN_GBPT + GROUPBOX_PADDING;  // Banner group box info bottom
+constexpr int32_t BAN_GBDT = BAN_GBDB + 20 + 1 * 11;       // Banner group box info top
 static rct_widget BannerWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - BAN_GBPT, 0) + 3, GBBB(WH - BAN_GBPT, 0) - 3,   STR_NONE,  STR_NONE),  // WIDX_BANNER_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
@@ -393,10 +393,10 @@ static rct_widget BannerWidgets[] = {
     { WIDGETS_END },
 };
 
-#define COR_GBPB PADDING_BOTTOM                 // Corrupt element group box properties bottom
-#define COR_GBPT (COR_GBPB + 16 + 2 * 21)       // Corrupt element group box properties top
-#define COR_GBDB (COR_GBPT + GROUPBOX_PADDING)  // Corrupt element group box info bottom
-#define COR_GBDT (COR_GBDB + 20 + 0 * 11)       // Corrupt element group box info top
+constexpr int32_t COR_GBPB = PADDING_BOTTOM;               // Corrupt element group box properties bottom
+constexpr int32_t COR_GBPT = COR_GBPB + 16 + 2 * 21;       // Corrupt element group box properties top
+constexpr int32_t COR_GBDB = COR_GBPT + GROUPBOX_PADDING;  // Corrupt element group box info bottom
+constexpr int32_t COR_GBDT = COR_GBDB + 20 + 0 * 11;       // Corrupt element group box info top
 static rct_widget CorruptWidgets[] = {
     MAIN_TILE_INSPECTOR_WIDGETS,
       SPINNER_WIDGETS      (1,  GBBL(1), GBBR(1), GBBT(WH - COR_GBPT, 0) + 3, GBBB(WH - COR_GBPT, 0) - 3,   STR_NONE,  STR_NONE),  // WIDX_CORRUPT_SPINNER_HEIGHT{,_INCREASE,_DECREASE}
diff --git a/src/openrct2-ui/windows/TitleCommandEditor.cpp b/src/openrct2-ui/windows/TitleCommandEditor.cpp
index 4a84b2ba08..5a481d7d70 100644
--- a/src/openrct2-ui/windows/TitleCommandEditor.cpp
+++ b/src/openrct2-ui/windows/TitleCommandEditor.cpp
@@ -69,16 +69,16 @@ enum WINDOW_WATER_WIDGET_IDX {
     WIDX_CANCEL
 };
 
-#define WW 200
-#define WH 120
-#define BY 32
-#define BY2 70
-#define WS 16
-#define WHA ((WW-WS*2)/2)
+constexpr int32_t WW = 200;
+constexpr int32_t WH = 120;
+constexpr int32_t BY = 32;
+constexpr int32_t BY2 = 70;
+constexpr int32_t WS = 16;
+constexpr int32_t WHA = (WW-WS*2)/2;
 
 static bool _window_title_command_editor_insert;
 static int32_t _window_title_command_editor_index;
-#define BUF_SIZE 50
+constexpr size_t BUF_SIZE = 50;
 static char textbox1Buffer[BUF_SIZE];
 static char textbox2Buffer[BUF_SIZE];
 static TitleCommand command = { TITLE_SCRIPT_LOAD, { 0 } };
diff --git a/src/openrct2-ui/windows/TitleEditor.cpp b/src/openrct2-ui/windows/TitleEditor.cpp
index 0baa7a3550..c47cf68869 100644
--- a/src/openrct2-ui/windows/TitleEditor.cpp
+++ b/src/openrct2-ui/windows/TitleEditor.cpp
@@ -135,15 +135,15 @@ enum WINDOW_TITLE_EDITOR_WIDGET_IDX {
 
 // Increase BW if certain languages do not fit
 // BW should be a multiple of 4
-#define WW 320
-#define WH 270
-#define BX 8
-#define BW 72
-#define BY 52
-#define BH 63
-#define BS 18
-#define SCROLL_WIDTH 350
-#define WH2 127
+constexpr int32_t WW = 320;
+constexpr int32_t WH = 270;
+constexpr int32_t BX = 8;
+constexpr int32_t BW = 72;
+constexpr int32_t BY = 52;
+constexpr int32_t BH = 63;
+constexpr int32_t BS = 18;
+constexpr int32_t SCROLL_WIDTH = 350;
+constexpr int32_t WH2 = 127;
 
 static rct_widget window_title_editor_widgets[] = {
     { WWT_FRAME,            0,  0,      WW-1,   0,      WH2-1,  0xFFFFFFFF,             STR_NONE },                             // panel / background
diff --git a/src/openrct2-ui/windows/TrackDesignPlace.cpp b/src/openrct2-ui/windows/TrackDesignPlace.cpp
index 62a857ab17..bb280f71b7 100644
--- a/src/openrct2-ui/windows/TrackDesignPlace.cpp
+++ b/src/openrct2-ui/windows/TrackDesignPlace.cpp
@@ -27,9 +27,9 @@
 #include <openrct2/world/Surface.h>
 #include <vector>
 
-#define TRACK_MINI_PREVIEW_WIDTH 168
-#define TRACK_MINI_PREVIEW_HEIGHT 78
-#define TRACK_MINI_PREVIEW_SIZE (TRACK_MINI_PREVIEW_WIDTH * TRACK_MINI_PREVIEW_HEIGHT)
+constexpr int16_t TRACK_MINI_PREVIEW_WIDTH = 168;
+constexpr int16_t TRACK_MINI_PREVIEW_HEIGHT = 78;
+constexpr uint16_t TRACK_MINI_PREVIEW_SIZE = TRACK_MINI_PREVIEW_WIDTH * TRACK_MINI_PREVIEW_HEIGHT;
 
 struct rct_track_td6;
 
diff --git a/src/openrct2-ui/windows/TrackList.cpp b/src/openrct2-ui/windows/TrackList.cpp
index 1cf6d4d08d..332066bdca 100644
--- a/src/openrct2-ui/windows/TrackList.cpp
+++ b/src/openrct2-ui/windows/TrackList.cpp
@@ -97,7 +97,7 @@ static rct_window_event_list window_track_list_events = {
 };
 // clang-format on
 
-#define TRACK_DESIGN_INDEX_UNLOADED UINT16_MAX
+constexpr uint16_t TRACK_DESIGN_INDEX_UNLOADED = UINT16_MAX;
 
 ride_list_item _window_track_list_item;
 
diff --git a/src/openrct2-ui/windows/ViewClipping.cpp b/src/openrct2-ui/windows/ViewClipping.cpp
index 2b0efa222f..9950d52377 100644
--- a/src/openrct2-ui/windows/ViewClipping.cpp
+++ b/src/openrct2-ui/windows/ViewClipping.cpp
@@ -45,8 +45,8 @@ static DISPLAY_TYPE gClipHeightDisplayType = DISPLAY_TYPE::DISPLAY_UNITS;
 
 #pragma region Widgets
 
-#define WW 180
-#define WH 155
+constexpr int32_t WW = 180;
+constexpr int32_t WH = 155;
 
 static rct_widget window_view_clipping_widgets[] = {
     { WWT_FRAME,        0,  0,          WW - 1,     0,      WH - 1,     STR_NONE,                               STR_NONE }, // panel / background
diff --git a/src/openrct2-ui/windows/Viewport.cpp b/src/openrct2-ui/windows/Viewport.cpp
index 33a4af79dc..c36c6954b7 100644
--- a/src/openrct2-ui/windows/Viewport.cpp
+++ b/src/openrct2-ui/windows/Viewport.cpp
@@ -15,8 +15,8 @@
 #include <openrct2/localisation/Localisation.h>
 #include <openrct2/sprites.h>
 
-#define INITIAL_WIDTH 500
-#define INITIAL_HEIGHT 350
+constexpr int32_t INITIAL_WIDTH = 500;
+constexpr int32_t INITIAL_HEIGHT = 350;
 
 // clang-format off
 enum {