Atlanta is about 58 times smaller than Massachusetts.

Massachusetts is approximately 20,306 sq km, while Atlanta (map shows its 114 named neighbourhoods; the area covers the whole city) is approximately 350 sq km, making Atlanta 1.73% the size of Massachusetts.
Tip: This to-scale comparison of Massachusetts vs. Atlanta 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.