Boston is about 2.4 times smaller than Tampa.

Tampa is approximately 297 sq km, while Boston is approximately 124 sq km, making Boston 41.82% the size of Tampa.
Tip: This to-scale comparison of Tampa vs. Boston 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.