Sarasota is about 1.8 times smaller than Boulder.

Boulder is approximately 70 sq km, while Sarasota (map shows its 40 named neighbourhoods; the area covers the whole city) is approximately 38 sq km, making Sarasota 54.7% the size of Boulder.
Tip: This to-scale comparison of Boulder vs. Sarasota 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.