British Indian Ocean Territory is about 14 times smaller than Kiribati.

Kiribati is approximately 811 sq km, while British Indian Ocean Territory is approximately 60 sq km, making British Indian Ocean Territory 7.4% the size of Kiribati. Meanwhile, the population of Kiribati is ~136,488 people (133,488 fewer people live in British Indian Ocean Territory).
Tip: This to-scale comparison of Kiribati 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.