Staten Island is about 4.2 times smaller than Tokyo.

Tokyo is approximately 619 sq km, while Staten Island is approximately 149 sq km, making Staten Island 24.07% the size of Tokyo.
Tip: This to-scale comparison of Tokyo vs. Staten Island 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.