1 lunar distance
384,400 kmLength · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Length & distance
Just how long is 1 lunar distance?
Solar neighbourhood
1 LD
1 lunar distance
The quantity is exact as entered.
384,400 kmLength
0 - shared origin
Earth–Moon distance
The Earth–Moon distance is the average space between the centres of the Earth and the Moon.
384,400 kmDistance
0 - shared origin
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. A ruler represents the selected distance or a measurement not visible in this view.
A little perspective
1 lunar distance is approximately equal to the Earth–Moon distance.
Measurements, assumptions & sources +
1 lunar distance
Length: 384,400 km; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Earth–Moon distance
Distance: 384,400 km; average.
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.
Measurement details
Why these numbers?
Compare 1 lunar distance with the Earth–Moon distance. The notes below explain how each value was chosen.
Earth–Moon distance
384,400 kmDistance · average
Average centre-to-centre distance. The Moon’s orbit is not a circle.
- Comparing
- Length ↔ Distance
- Relative size
- 1 lunar distance is approximately equal to the Earth–Moon distance.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- The Earth–Moon distance: This is an average value; individual or instantaneous measurements may vary.
This comparison follows the selected length only; other dimensions may differ.
384,400,000 mmetres
1.2612 × 10⁹ ftfeet
238,860 mimiles
0.0025696 AUastronomical units
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
A little smaller. A little larger.