Your query "how big is" is very general and lacks context for a specific answer. It could refer to the size of a country, an object, a map, or something else. For example, if you want to know about the size of Germany compared to the United States, Germany covers approximately 137,847 square miles, while the United States covers about 3,791,400 square miles, making Germany about 28 times smaller than the US.
If you clarify what specifically you want to know about the size of, I can provide a detailed and accurate answer.