diff --git a/React/Modules/RCTUIManager.m b/React/Modules/RCTUIManager.m
index 2db1bc9419386b..8bc31ee03e6e91 100644
--- a/React/Modules/RCTUIManager.m
+++ b/React/Modules/RCTUIManager.m
@@ -240,6 +240,10 @@ @implementation RCTUIManager
 
 - (void)didReceiveNewContentSizeMultiplier
 {
+  // Report the event across the bridge.
+  [_bridge.eventDispatcher sendDeviceEventWithName:@"didUpdateContentSizeMultiplier"
+                                              body:@([_bridge.accessibilityManager multiplier])];
+
   dispatch_async(RCTGetUIManagerQueue(), ^{
     [[NSNotificationCenter defaultCenter] postNotificationName:RCTUIManagerWillUpdateViewsDueToContentSizeMultiplierChangeNotification
                                                         object:self];
@@ -1565,6 +1569,11 @@ static void RCTMeasureLayout(RCTShadowView *view,
   }];
 }
 
+RCT_EXPORT_METHOD(getContentSizeMultiplier:(nonnull RCTResponseSenderBlock)callback)
+{
+  callback(@[@(_bridge.accessibilityManager.multiplier)]);
+}
+
 - (void)rootViewForReactTag:(NSNumber *)reactTag withCompletion:(void (^)(UIView *view))completion
 {
   RCTAssertMainQueue();