diff --git a/Source/Engine/Core/Utilities.h b/Source/Engine/Core/Utilities.h
index 8d77c508d..531509d61 100644
--- a/Source/Engine/Core/Utilities.h
+++ b/Source/Engine/Core/Utilities.h
@@ -11,21 +11,21 @@ namespace Utilities
     template<typename T>
     FORCE_INLINE T RoundTo1DecimalPlace(T value)
     {
-        return round(value * 10) / 10;
+        return (T)round((double)value * 10) / (T)10;
     }
 
     // Round floating point value up to 2 decimal places
     template<typename T>
     FORCE_INLINE T RoundTo2DecimalPlaces(T value)
     {
-        return round(value * 100) / 100;
+        return (T)round((double)value * 100.0) / (T)100;
     }
 
     // Round floating point value up to 3 decimal places
     template<typename T>
     FORCE_INLINE T RoundTo3DecimalPlaces(T value)
     {
-        return round(value * 1000) / 1000;
+        return (T)round((double)value * 1000.0) / (T)1000;
     }
 
     // Converts size of the file (in bytes) to the best fitting string
diff --git a/Source/Engine/Debug/DebugDraw.cpp b/Source/Engine/Debug/DebugDraw.cpp
index e394b31f4..bae424c4e 100644
--- a/Source/Engine/Debug/DebugDraw.cpp
+++ b/Source/Engine/Debug/DebugDraw.cpp
@@ -313,10 +313,10 @@ bool DebugDrawService::Init()
     for (float a = 0.0f; a < TWO_PI; a += step)
     {
         // Calculate sines and cosines
-        float sinA = sin(a);
-        float cosA = cos(a);
-        float sinB = sin(a + step);
-        float cosB = cos(a + step);
+        float sinA = Math::Sin(a);
+        float cosA = Math::Cos(a);
+        float sinB = Math::Sin(a + step);
+        float cosB = Math::Cos(a + step);
 
         // XY loop
         SphereCache[index++] = Vector3(cosA, sinA, 0.0f);
@@ -337,10 +337,10 @@ bool DebugDrawService::Init()
     for (float a = 0.0f; a < TWO_PI; a += step)
     {
         // Calculate sines and cosines
-        float sinA = sin(a);
-        float cosA = cos(a);
-        float sinB = sin(a + step);
-        float cosB = cos(a + step);
+        float sinA = Math::Sin(a);
+        float cosA = Math::Cos(a);
+        float sinB = Math::Sin(a + step);
+        float cosB = Math::Cos(a + step);
 
         CircleCache[index++] = Vector3(cosA, sinA, 0.0f);
         CircleCache[index++] = Vector3(cosB, sinB, 0.0f);
@@ -1049,10 +1049,10 @@ void DebugDraw::DrawWireTube(const Vector3& position, const Quaternion& orientat
         {
             // Calculate sines and cosines
             // TODO: optimize this stuff
-            float sinA = sin(a) * radius;
-            float cosA = cos(a) * radius;
-            float sinB = sin(a + step) * radius;
-            float cosB = cos(a + step) * radius;
+            float sinA = Math::Sin(a) * radius;
+            float cosA = Math::Cos(a) * radius;
+            float sinB = Math::Sin(a + step) * radius;
+            float cosB = Math::Cos(a + step) * radius;
 
             // First XY loop
             DRAW_WIRE_BOX_LINE(cosA, sinA, -halfLength, cosB, sinB, -halfLength);
@@ -1098,8 +1098,8 @@ void DebugDraw::DrawWireCylinder(const Vector3& position, const Quaternion& orie
     {
         // Cache data
         float theta = i * angleBetweenFacets;
-        float x = cos(theta) * radius;
-        float z = sin(theta) * radius;
+        float x = Math::Cos(theta) * radius;
+        float z = Math::Sin(theta) * radius;
 
         // Top cap
         CylinderCache[index++] = Vector3(x, verticalOffset, z);
diff --git a/Source/Engine/Level/Actors/SpotLight.cpp b/Source/Engine/Level/Actors/SpotLight.cpp
index 57d4d97f3..c601506c4 100644
--- a/Source/Engine/Level/Actors/SpotLight.cpp
+++ b/Source/Engine/Level/Actors/SpotLight.cpp
@@ -198,8 +198,8 @@ void SpotLight::OnDebugDrawSelected()
     Vector3 up = _transform.GetUp();
     Vector3 forward = GetDirection();
     float radius = GetScaledRadius();
-    float discRadius = radius * tan(_outerConeAngle * DegreesToRadians);
-    float falloffDiscRadius = radius * tan(_innerConeAngle * DegreesToRadians);
+    float discRadius = radius * Math::Tan(_outerConeAngle * DegreesToRadians);
+    float falloffDiscRadius = radius * Math::Tan(_innerConeAngle * DegreesToRadians);
     Vector3 position = GetPosition();
 
     DEBUG_DRAW_LINE(position, position + forward * radius + up * discRadius, color, 0, true);