To convert mm to ly enter the value in the field below and select the target unit, the value will be displayed below:
| Metric | |
|---|---|
| Kilometer (km) | |
| Meter (m) | |
| Decimeter (dm) | |
| Centimeter (cm) | |
| Millimeter (mm) | |
| Micrometer (µm) | |
| Nanometer (nm) | |
| Angstrom (Å) | |
| Astronomical | |
|---|---|
| Parsec (pc) | |
| Light-year | |
| Astronomical unit (AU) | |
| Light-minute | |
| Light-second | |
| British/American | |
|---|---|
| League | |
| Mile (mi) | |
| Furlong | Chain |
| Rod (rd) | |
| Yard (yd) | |
| Foot (ft) | |
| Link | |
| Hand | |
| Inch (in) | |
| Line | |
| Thousandth (mil) | |
| Thou (thou) | |
| Nautical | |
|---|---|
| Nautical mile | |
| Fathom | |
The formulas for conversion are represented below:
ly = mm / 9,461x1018
Example: 30 Millimeters in Light Years:
ly = mm / 9,461x1018
ly = 30 / 9,461x1018
ly = 3,171x10-18
mm = ly * 9,461x1018
Example: 1.5 Light Years in Millimeters:
mm = ly * 9,461x1018
mm = 1.5 * 9.461x1018
mm = 1.419x1019
Considering that 1 Millimeter equals 0.001 Light Years, you can use a rule of three to get that 100 Millimeters equal 0.1 Light Years.
1 mm - 1,057x10-19 ly
100 mm - x
Apply the rule of three and get:
x mm = 100 * 1.057x10-19 lymm
x = 1.057x10-17 ly
If every 1 Light Years we have 9.461x1018 Millimeters, just multiply the amount of Light Years (100) by 9.461x1018, so you will get that 100 ly equals 9.461x1020 mm. Observe the calculation below:
mm = ly * 9,461x1018
mm = 100 * 9,461x1018
mm = 9.461x1020