Toronto is about 2 times smaller than San Antonio.

San Antonio (map shows its 401 named neighbourhoods; the area covers the whole city) is approximately 1,292 sq km, while Toronto is approximately 630 sq km, making Toronto 48.77% the size of San Antonio.
Tip: This to-scale comparison of San Antonio 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.