Bellevue is about 10 times smaller than Dallas.

Dallas is approximately 880 sq km, while Bellevue is approximately 87 sq km, making Bellevue 9.86% the size of Dallas.
Tip: This to-scale comparison of Dallas vs. Bellevue 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.