Pittsburgh is about 1.6 times bigger than Miami.

Miami is approximately 92 sq km, while Pittsburgh is approximately 143 sq km, making Pittsburgh 55% larger than Miami.
Tip: This to-scale comparison of Miami vs. Pittsburgh 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.