What is circumference of world?

The circumference of the Earth is approximately 40,075 kilometers (24,901 miles) when measured around the equator. If measured around the poles, the circumference is slightly smaller, about 40,008 kilometers (24,860 miles), due to the Earth’s oblate spheroid shape. This difference arises because the Earth is not a perfect sphere; it is slightly flattened at the poles and bulging at the equator.