Miami is about 3.4 times smaller than Little Rock.

Little Rock (map shows its 28 named neighbourhoods; the area covers the whole city) is approximately 314 sq km, while Miami is approximately 92 sq km, making Miami 29.43% the size of Little Rock.
Tip: This to-scale comparison of Little Rock vs. Miami 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.