Rochester is about 9 times smaller than Canberra.

Canberra is approximately 814 sq km, while Rochester is approximately 93 sq km, making Rochester 11.38% the size of Canberra.
Tip: This to-scale comparison of Canberra vs. Rochester 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.