Savannah is about 3.1 times smaller than Dallas.

Dallas is approximately 880 sq km, while Savannah is approximately 283 sq km, making Savannah 32.23% the size of Dallas.
Tip: This to-scale comparison of Dallas vs. Savannah 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.