District of Columbia is about 839 times smaller than Bangladesh.

Bangladesh is approximately 148,460 sq km, while District of Columbia is approximately 177 sq km, making District of Columbia 0.12% the size of Bangladesh. Meanwhile, the population of Bangladesh is ~165.7 million people (165.0 million fewer people live in District of Columbia).
Tip: This to-scale comparison of Bangladesh vs. District of Columbia uses the Mercator projection, which distorts the size of regions near the poles.
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