Ulm is about 7 times smaller than Canberra.

Canberra is approximately 814 sq km, while Ulm (map shows its 55 named neighbourhoods; the area covers the whole city) is approximately 119 sq km, making Ulm 14.58% the size of Canberra.
Tip: This to-scale comparison of Canberra vs. Ulm 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.