diff --git a/src/components/Lightbox.js b/src/components/Lightbox.js
index 06f8ee4cfeb6..45326edb4610 100644
--- a/src/components/Lightbox.js
+++ b/src/components/Lightbox.js
@@ -183,8 +183,8 @@ function Lightbox({isAuthTokenRequired, source, onScaleChanged, onPress, onError
                                     onError={onError}
                                     onLoadEnd={() => setImageLoaded(true)}
                                     onLoad={(e) => {
-                                        const width = (e.nativeEvent?.width || 0) / PixelRatio.get();
-                                        const height = (e.nativeEvent?.height || 0) / PixelRatio.get();
+                                        const width = (e.nativeEvent?.width || 0) * PixelRatio.get();
+                                        const height = (e.nativeEvent?.height || 0) * PixelRatio.get();
                                         setImageDimensions({...imageDimensions, lightboxSize: {width, height}});
                                     }}
                                 />
@@ -205,8 +205,8 @@ function Lightbox({isAuthTokenRequired, source, onScaleChanged, onPress, onError
                                 isAuthTokenRequired={isAuthTokenRequired}
                                 onLoadEnd={() => setFallbackLoaded(true)}
                                 onLoad={(e) => {
-                                    const width = e.nativeEvent?.width || 0;
-                                    const height = e.nativeEvent?.height || 0;
+                                    const width = (e.nativeEvent?.width || 0) * PixelRatio.get();
+                                    const height = (e.nativeEvent?.height || 0) * PixelRatio.get();
 
                                     if (imageDimensions?.lightboxSize != null) {
                                         return;