Rochester is about 1.3 times smaller than Boston.

Boston is approximately 124 sq km, while Rochester is approximately 93 sq km, making Rochester 74.69% the size of Boston.
Tip: This to-scale comparison of Boston 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.