Heard Island and McDonald Islands is about 11 times bigger than Norfolk Island.

Norfolk Island is approximately 36 sq km, while Heard Island and McDonald Islands is approximately 412 sq km, making Heard Island and McDonald Islands 1,044% larger than Norfolk Island.
Tip: This to-scale comparison of Norfolk Island vs. Heard Island and McDonald Islands uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Heard Island and McDonald Islands vs. Norfolk Island

Our free app, MapSize by MyLifeElsewhere — compare any two places, to scale on your mobile device.