Tanzania is about 187 times bigger than Delaware.

Delaware is approximately 5,060 sq km, while Tanzania is approximately 947,300 sq km, making Tanzania 18,621% larger than Delaware. Meanwhile, the population of Delaware is ~897,934 people (63.0 million more people live in Tanzania).
Tip: This to-scale comparison of Delaware vs. Tanzania uses the Mercator projection, which distorts the size of regions near the poles.