Baltimore is about 1.4 times smaller than Salt Lake City.

Salt Lake City is approximately 287 sq km, while Baltimore is approximately 210 sq km, making Baltimore 73.0% the size of Salt Lake City.
Tip: This to-scale comparison of Salt Lake City vs. Baltimore 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.