London is about 25 times bigger than Kalamazoo.

Kalamazoo is approximately 64 sq km, while London (including the 32 boroughs of greater London) is approximately 1,572 sq km, making London 2,364% larger than Kalamazoo.
Tip: This to-scale comparison of Kalamazoo vs. London 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.