Toronto is about 2.9 times bigger than Dusseldorf.

Dusseldorf is approximately 217 sq km, while Toronto is approximately 630 sq km, making Toronto 190% larger than Dusseldorf.
Tip: This to-scale comparison of Dusseldorf vs. Toronto 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.