diff --git a/src/openrct2/ParkFile.cpp b/src/openrct2/ParkFile.cpp
index 1c42f7f413..b6b3d7b7f8 100644
--- a/src/openrct2/ParkFile.cpp
+++ b/src/openrct2/ParkFile.cpp
@@ -520,7 +520,7 @@ namespace OpenRCT2
                         }
 
                         auto data = File::ReadAllBytes(ori->Path);
-                        cs.Write<uint32_t>(data.size());
+                        cs.Write<uint32_t>(static_cast<uint32_t>(data.size()));
                         cs.Write(data.data(), data.size());
                         count++;
                     }
diff --git a/src/openrct2/interface/InteractiveConsole.cpp b/src/openrct2/interface/InteractiveConsole.cpp
index 024e19aa0d..de6c067466 100644
--- a/src/openrct2/interface/InteractiveConsole.cpp
+++ b/src/openrct2/interface/InteractiveConsole.cpp
@@ -1239,7 +1239,7 @@ static int32_t cc_remove_park_fences(InteractiveConsole& console, [[maybe_unused
 static int32_t cc_show_limits(InteractiveConsole& console, [[maybe_unused]] const arguments_t& argv)
 {
     const auto& tileElements = GetTileElements();
-    int32_t tileElementCount = tileElements.size();
+    auto tileElementCount = tileElements.size();
 
     int32_t rideCount = ride_get_count();
     int32_t spriteCount = 0;
@@ -1261,7 +1261,7 @@ static int32_t cc_show_limits(InteractiveConsole& console, [[maybe_unused]] cons
     }
 
     console.WriteFormatLine("Sprites: %d/%d", spriteCount, MAX_ENTITIES);
-    console.WriteFormatLine("Map Elements: %d/%d", tileElementCount, MAX_TILE_ELEMENTS);
+    console.WriteFormatLine("Map Elements: %zu/%d", tileElementCount, MAX_TILE_ELEMENTS);
     console.WriteFormatLine("Banners: %d/%zu", bannerCount, MAX_BANNERS);
     console.WriteFormatLine("Rides: %d/%d", rideCount, MAX_RIDES);
     console.WriteFormatLine("Staff: %d/%d", staffCount, STAFF_MAX_COUNT);
diff --git a/src/openrct2/util/Util.cpp b/src/openrct2/util/Util.cpp
index 691a9c48c0..b216d90b62 100644
--- a/src/openrct2/util/Util.cpp
+++ b/src/openrct2/util/Util.cpp
@@ -725,7 +725,7 @@ std::vector<uint8_t> Gzip(const void* data, size_t dataLen)
         do
         {
             output.resize(output.size() + nextBlockSize);
-            strm.avail_out = nextBlockSize;
+            strm.avail_out = static_cast<uInt>(nextBlockSize);
             strm.next_out = &output[output.size() - nextBlockSize];
             ret = deflate(&strm, flush);
             if (ret == Z_STREAM_ERROR)
@@ -770,7 +770,7 @@ std::vector<uint8_t> Ungzip(const void* data, size_t dataLen)
         do
         {
             output.resize(output.size() + nextBlockSize);
-            strm.avail_out = nextBlockSize;
+            strm.avail_out = static_cast<uInt>(nextBlockSize);
             strm.next_out = &output[output.size() - nextBlockSize];
             ret = inflate(&strm, flush);
             if (ret == Z_STREAM_ERROR)