Central African Republic is about 10,383 times bigger than British Indian Ocean Territory.

British Indian Ocean Territory is approximately 60 sq km, while Central African Republic is approximately 622,984 sq km, making Central African Republic 1,038,207% larger than British Indian Ocean Territory.
Tip: This to-scale comparison of British Indian Ocean Territory vs. Central African Republic uses the Mercator projection, which distorts the size of regions near the poles.
Compare further: Central African Republic vs. British Indian Ocean Territory