Solomon Islands is about 70 times bigger than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while Solomon Islands is approximately 28,896 sq km, making Solomon Islands 6,914% larger than Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. Solomon Islands uses the Mercator projection, which distorts the size of regions near the poles.

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

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