Athens is about 1.9 times smaller than Edmonton.

Edmonton is approximately 768 sq km, while Athens (map shows its 34 named neighbourhoods; the area covers the whole city) is approximately 412 sq km, making Athens 53.66% the size of Edmonton.
Tip: This to-scale comparison of Edmonton vs. Athens 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.