Staten Island is about 5 times smaller than Canberra.

Canberra is approximately 814 sq km, while Staten Island is approximately 149 sq km, making Staten Island 18.3% the size of Canberra.
Tip: This to-scale comparison of Canberra 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.