Shanghai is about 15 times bigger than Venice.

Venice is approximately 415 sq km, while Shanghai is approximately 6,341 sq km, making Shanghai 1,430% larger than Venice.
Tip: This to-scale comparison of Venice vs. Shanghai uses the Mercator projection, which distorts the size of regions near the poles.
Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.