Light Years to Millimeters Converter
CommonMeters, feet, miles and other distances.
How to convert Light Years to Millimeters
Multiply the light years value by 9.461e+18: 1 ly = 9.461e+18 mm. Going the other way, 1 mm = 1.057e-19 ly, so divide by 9.461e+18 or use the Millimeters to Light Years converter.
About these units
Light Years (ly)
A light-year is the distance light travels through a vacuum in one Julian year, about 9.461 trillion kilometers. Despite the name it measures distance, not time, and is used for stars and galaxies.
Millimeters (mm)
A millimeter is one thousandth of a meter. It is the usual unit for engineering drawings, paper sizes and anything measured finer than a centimeter.
Light Years to Millimeters conversion table
| Light Years (ly) | Millimeters (mm) |
|---|---|
| 1 ly | 9.461e+18 mm |
| 2 ly | 1.8922e+19 mm |
| 3 ly | 2.8383e+19 mm |
| 4 ly | 3.7844e+19 mm |
| 5 ly | 4.7305e+19 mm |
| 10 ly | 9.461e+19 mm |
| 20 ly | 1.8922e+20 mm |
| 25 ly | 2.3653e+20 mm |
| 50 ly | 4.7305e+20 mm |
| 100 ly | 9.461e+20 mm |
| 500 ly | 4.7305e+21 mm |
| 1,000 ly | 9.461e+21 mm |