Earth–Moon distance
The Earth–Moon distance is the average space between the centres of the Earth and the Moon.
Also known as: earth moon distance, distance to the moon, lunar distance
How big is it?
384,400 km away
Distance · specified
A little perspective
About 1.79 times the diameter of Proxima Centauri.
Proxima Centauri: Proxima Centauri is a red dwarf star and the closest known star to the Sun.
Measurements, assumptions & sources +
Earth–Moon distance
Average centre-to-centre distance. The Moon’s orbit is not a circle.
NASA — Earth and Moon by the numbers
The marked distance is calibrated. Unmeasured illustration details are representative.
Proxima Centauri
A rounded red-dwarf reference. Radius and mass are approximate.
Defined examples — our methodology
The marked diameter is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 384,400 km
For comparison, this page uses distance. The record labels this value specified, so the stated convention rather than an inferred average controls the comparison.
Average centre-to-centre distance. The Moon’s orbit is not a circle.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Earth–Moon distance dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 384,400 km | Not recorded | specified |
Around this scale
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These links use compatible length records, ordered around the selected value.
Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NASA — Earth and Moon by the numbersMean radius and average orbital distance; rounded values.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
SpaceEarth12,740 kmEarth is the rocky planet on which we live and the third planet from the Sun.
SpaceMoon3,475 kmThe Moon is Earth’s natural satellite and the brightest large object in Earth’s night sky.SpaceEarth–Sun distance1 AUThe Earth–Sun distance, or astronomical unit, is the standard measure of separation between Earth and the Sun used in astronomy.
SpaceProxima Centauri214,300 kmProxima Centauri is a red dwarf star and the closest known star to the Sun.
SpaceJupiter139,800 kmJupiter is a giant planet composed mainly of hydrogen and helium, orbiting the Sun beyond the asteroid belt.
SpaceSaturn116,500 kmSaturn is a giant planet made mostly of hydrogen and helium, distinguished by its extensive ring system.
SpaceSun1,391,000 kmThe Sun is the star at the centre of the Solar System.
SpaceUranus50,720 kmUranus is an ice giant planet with a blue-green atmosphere, orbiting the Sun on its side.