Convert light years (ly) to millimeters (mm) with formulas, examples, and conversion tables.
To convert light years to millimeters, multiply the value by 9.461e18.
1 light year = 9.461e18 millimeters
| light years (ly) | millimeters (mm) |
|---|---|
| 1 ly | 9.461e18 mm |
| 2 ly | 1.8922e19 mm |
| 5 ly | 4.7305e19 mm |
| 10 ly | 9.461e19 mm |
| 20 ly | 1.8922e20 mm |
| 25 ly | 2.36525e20 mm |
| 50 ly | 4.7305e20 mm |
| 100 ly | 9.461e20 mm |
| 250 ly | 2.36525e21 mm |
| 500 ly | 4.7305e21 mm |
| 1000 ly | 9.461e21 mm |
| Unit | 1 ly = |
|---|---|
| Light Years to Kilometers | 9.461e12 km |
| Light Years to Meters | 9.461e15 m |
| Light Years to Centimeters | 9.461e17 cm |
| Light Years to Millimeters | 9.461e18 mm |
| Light Years to Micrometers | 9.461e21 μm |
| Light Years to Nanometers | 9.461e24 nm |
| Light Years to Miles | 5.87879284976e12 mi |
| Light Years to Yards | 1.03466754156e16 yd |
| Light Years to Feet | 3.10400262467e16 ft |
| Light Years to Inches | 3.72480314961e17 in |
| Light Years to Nautical Miles | 5.10853131749e12 nmi |
| Light Years to Fathoms | 5.17333770779e15 ftm |
| Light Years to Astronomical Units | 63241.9786096 AU |
| Light Years to Parsecs | 0.306578094621 pc |
| Light Years to Angstroms | 9.461e25 Å |
| Light Years to Planck Lengths | 5.85365551847e50 ℓP |
| Light Years to Rods | 1.88121371192e15 rd |
The light year (ly) is a unit of length in the astronomical system. One light year equals 9461000000000000 meters.
The millimeter (mm) is a unit of length in the metric system. One millimeter equals 0.001 meters.