Turks and Caicos Islands is about 2.3 times bigger than Heard Island and McDonald Islands.

Heard Island and McDonald Islands is approximately 412 sq km, while Turks and Caicos Islands is approximately 948 sq km, making Turks and Caicos Islands 130% larger than Heard Island and McDonald Islands.
Tip: This to-scale comparison of Heard Island and McDonald Islands vs. Turks and Caicos Islands uses the Mercator projection, which distorts the size of regions near the poles.

Compare further: Turks and Caicos Islands vs. Heard Island and McDonald Islands

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