diff --git a/React/Base/RCTUtils.h b/React/Base/RCTUtils.h
index 5643035b55e..ecb79159413 100644
--- a/React/Base/RCTUtils.h
+++ b/React/Base/RCTUtils.h
@@ -40,6 +40,9 @@ RCT_EXTERN void RCTExecuteOnMainQueue(dispatch_block_t block);
 // Please do not use this unless you know what you're doing.
 RCT_EXTERN void RCTUnsafeExecuteOnMainQueueSync(dispatch_block_t block);
 
+// Get screen scale, can be only used on main
+RCT_EXTERN void RCTComputeScreenScale(void);
+
 // Get screen metrics in a thread-safe way
 RCT_EXTERN CGFloat RCTScreenScale(void);
 RCT_EXTERN CGFloat RCTFontSizeMultiplier(void);
diff --git a/React/Base/RCTUtils.m b/React/Base/RCTUtils.m
index 6478f8292c2..d33c174e57c 100644
--- a/React/Base/RCTUtils.m
+++ b/React/Base/RCTUtils.m
@@ -296,16 +296,23 @@ static void RCTUnsafeExecuteOnMainQueueOnceSync(dispatch_once_t *onceToken, disp
   }
 }
 
+static dispatch_once_t onceTokenScreenScale;
+static CGFloat screenScale;
+
+void RCTComputeScreenScale()
+{
+  dispatch_once(&onceTokenScreenScale, ^{
+    screenScale = [UIScreen mainScreen].scale;
+  });
+}
+
 CGFloat RCTScreenScale()
 {
-  static dispatch_once_t onceToken;
-  static CGFloat scale;
-
-  RCTUnsafeExecuteOnMainQueueOnceSync(&onceToken, ^{
-    scale = [UIScreen mainScreen].scale;
+  RCTUnsafeExecuteOnMainQueueOnceSync(&onceTokenScreenScale, ^{
+    screenScale = [UIScreen mainScreen].scale;
   });
 
-  return scale;
+  return screenScale;
 }
 
 CGFloat RCTFontSizeMultiplier()