diff --git a/src/Controls/src/Core/FontExtensions.cs b/src/Controls/src/Core/FontExtensions.cs
index 8e4899490d7e..538a78534fa7 100644
--- a/src/Controls/src/Core/FontExtensions.cs
+++ b/src/Controls/src/Core/FontExtensions.cs
@@ -26,7 +26,13 @@ public static FontAttributes GetFontAttributes(this Font font)
 			return attributes;
 		}
 
-		public static Font ToFont(this IFontElement element) =>
-			Font.OfSize(element.FontFamily, element.FontSize, enableScaling: element.FontAutoScalingEnabled).WithAttributes(element.FontAttributes);
+		public static Font ToFont(this IFontElement element, double? defaultSize = null)
+		{
+			var size = element.FontSize;
+			if (defaultSize.HasValue && (size == 0 || size == double.NaN))
+				size = defaultSize.Value;
+
+			return Font.OfSize(element.FontFamily, size, enableScaling: element.FontAutoScalingEnabled).WithAttributes(element.FontAttributes);
+		}
 	}
 }
diff --git a/src/Controls/src/Core/Platform/Android/Extensions/FormattedStringExtensions.cs b/src/Controls/src/Core/Platform/Android/Extensions/FormattedStringExtensions.cs
index c330b9868a5e..7e6b66d84b7c 100644
--- a/src/Controls/src/Core/Platform/Android/Extensions/FormattedStringExtensions.cs
+++ b/src/Controls/src/Core/Platform/Android/Extensions/FormattedStringExtensions.cs
@@ -22,6 +22,8 @@ public static SpannableString ToSpannableString(this FormattedString formattedSt
 			if (formattedString == null)
 				return new SpannableString(string.Empty);
 
+			var defaultFontSize = defaultFont?.Size ?? fontManager.DefaultFontSize;
+
 			var builder = new StringBuilder();
 			for (int i = 0; i < formattedString.Spans.Count; i++)
 			{
@@ -70,7 +72,7 @@ public static SpannableString ToSpannableString(this FormattedString formattedSt
 					spannable.SetSpan(new LineHeightSpan(textPaint, lineHeight), start, end, SpanTypes.InclusiveExclusive);
 				}
 
-				var font = span.ToFont();
+				var font = span.ToFont(defaultFontSize);
 				if (font.IsDefault && defaultFont.HasValue)
 					font = defaultFont.Value;