Tokelau is about 4.1 times smaller than Bouvet Island.

Bouvet Island is approximately 49 sq km, while Tokelau is approximately 12 sq km, making Tokelau 24.49% the size of Bouvet Island.
Tip: This to-scale comparison of Bouvet Island vs. Tokelau uses the Mercator projection, which distorts the size of regions near the poles.