Earth vs The Moon – size comparison
Guess first: stretch Earth to the size you think it is next to The Moon. The answer is further down.
Unrolling the blueprint…
The answer, at true scale
12,742 kmEarth · 7,918 mi across
3,474 kmThe Moon · 2,159 mi across
3.7×size ratio
Earth has about 3.7× the diameter of The Moon. Flip it around and The Moon reaches only about 27% of the way.
About Earth
Earth is 12,742 km across on average, slightly wider at the equator than pole to pole. Source
About The Moon
The Moon is 3,474 km across — about 27% of Earth's diameter. Source
Questions
How big is Earth compared to The Moon?
Earth is 12,742 km (7,918 mi) across, while The Moon is 3,474 km (2,159 mi) across — a ratio of about 3.7 to 1.
How big is Earth?
Earth is 12,742 km (7,918 mi) across. Earth is 12,742 km across on average, slightly wider at the equator than pole to pole.
How big is The Moon?
The Moon is 3,474 km (2,159 mi) across. The Moon is 3,474 km across — about 27% of Earth's diameter.