British Indian Ocean Territory is about 7 times smaller than Barbados.

Barbados is approximately 430 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 13.95% the size of Barbados. Meanwhile, the population of Barbados is ~282,623 people (279,623 fewer people live in British Indian Ocean Territory).
Tip: This to-scale comparison of Barbados vs. British Indian Ocean Territory 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.