Hanoi is about 203 times bigger than Cambridge.

Cambridge is approximately 17 sq km, while Hanoi is approximately 3,360 sq km, making Hanoi 20,179% larger than Cambridge.
Tip: This to-scale comparison of Cambridge vs. Hanoi 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.