Meter to Light-year
Convert Meter to Light-year instantly. Free online astronomy unit converter with exact formula, conversion table and FAQ.
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Formula
light-year = meter × 1.05700083e-16
meter = light-year × 9.46073047e+15
Conversion table
| 1 m | 1.05700083e-16 ly |
| 5 m | 5.28500417e-16 ly |
| 10 m | 1.05700083e-15 ly |
| 20 m | 2.11400167e-15 ly |
| 50 m | 5.28500417e-15 ly |
| 100 m | 1.05700083e-14 ly |
| 500 m | 5.28500417e-14 ly |
| 1,000 m | 1.05700083e-13 ly |
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Frequently asked questions
What is the source unit in this conversion?
The source unit is the meter (m). The meter is the SI base unit of length.
What is the destination unit in this conversion?
The destination unit is the light-year (ly). A light-year is the distance light travels in one Julian year through a vacuum.
How do I convert meter to light-year?
Multiply the meter value by 1.05700083e-16. For example, 10 m × 1.05700083e-16 = 1.05700083e-15 ly.
Is the meter to light-year conversion exact?
Yes. Both units have a fixed, defined relationship to the astronomy converter's distance base unit, so the conversion factor is exact rather than a measured approximation.
Where is this conversion commonly used?
It's used in astronomy, physics, and space science whenever a distance value expressed in meter needs to be compared with, or reported in, light-year.
Can I convert light-year back to meter?
Yes. Multiply the light-year value by 9.46073047e+15 to get meter.
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About this conversion
This page converts meter (m) to light-year (ly) within the astronomy converter.
The meter is the SI base unit of length.
A light-year is the distance light travels in one Julian year through a vacuum.
The formula is light-year = meter × 1.05700083e-16, based on each unit's fixed relationship to the astronomy converter's distance base unit.
The conversion is exact, since it relies on a fixed numerical ratio between the two units rather than a measured or approximate value.
Use the calculator above for instant results, or the table below for common meter values already converted to light-year.