Staten Island is about 4.2 times smaller than Toronto.

Toronto is approximately 630 sq km, while Staten Island is approximately 149 sq km, making Staten Island 23.64% the size of Toronto.
Tip: This to-scale comparison of Toronto 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.