The sun is bigger than both the moon and the Earth. The Earth is approximately 7,926 miles in diameter, while the sun is roughly 900,000 miles in diameter. The moon is smaller than both the sun and the Earth, with a diameter of 2,159.26 miles.
Jupiter is the largest planet in the solar system, with a diameter of roughly 88,846 miles. Mercury is the smallest, with a diameter of only 3,032 miles, and it is also closer to the sun than any other planet. The planet farthest from the sun is Neptune, at 2,798,842,000 miles away. The Earth is approximately 92,957,100 miles from the sun.