Atlanta is about 2.3 times bigger than Freiburg Im Breisgau.

Freiburg Im Breisgau is approximately 153 sq km, while Atlanta (map shows its 114 named neighbourhoods; the area covers the whole city) is approximately 350 sq km, making Atlanta 129% larger than Freiburg Im Breisgau.
Tip: This to-scale comparison of Freiburg Im Breisgau vs. Atlanta uses the Mercator projection, which distorts the size of regions near the poles.
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