Boston is about 3.9 times smaller than Albuquerque.

Albuquerque (map shows its 231 named neighbourhoods; the area covers the whole city) is approximately 485 sq km, while Boston is approximately 124 sq km, making Boston 25.57% the size of Albuquerque.
Tip: This to-scale comparison of Albuquerque vs. Boston 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.