Nauru is about 54,234 times smaller than Colombia.

Colombia is approximately 1,138,910 sq km, while Nauru is approximately 21 sq km, making Nauru 0.0% the size of Colombia. Meanwhile, the population of Colombia is ~49.1 million people (49.0 million fewer people live in Nauru).
Tip: This to-scale comparison of Colombia vs. Nauru 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.