Staten Island is about 1.7 times smaller than Frankfurt.

Frankfurt is approximately 248 sq km, while Staten Island is approximately 149 sq km, making Staten Island 60.0% the size of Frankfurt.
Tip: This to-scale comparison of Frankfurt 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.