Vienna is about 1.5 times bigger than Savannah.

Savannah is approximately 283 sq km, while Vienna is approximately 415 sq km, making Vienna 46% larger than Savannah.
Tip: This to-scale comparison of Savannah vs. Vienna 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.