Trenton is about 2.3 times smaller than Hartford.

Hartford is approximately 45 sq km, while Trenton is approximately 20 sq km, making Trenton 43.77% the size of Hartford.
Tip: This to-scale comparison of Hartford vs. Trenton 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.