Salt Lake City is about 2.2 times smaller than Toronto.

Toronto is approximately 630 sq km, while Salt Lake City is approximately 287 sq km, making Salt Lake City 45.57% the size of Toronto.
Tip: This to-scale comparison of Toronto vs. Salt Lake City 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.