| 1 ly = | 9460700000000000000000000000000 fm |
| 1 ly = | 9460700000000000000000000000 pm |
| 1 ly = | 94607000000000000000000000 Å |
| 1 ly = | 9460700000000000000000000 nm |
| 1 ly = | 9460700000000000000000 μm |
| 1 ly = | 9460700000000000000 mm |
| 1 ly = | 946070000000000000 cm |
| 1 ly = | 372468503937007874.0157 in |
| 1 ly = | 94607000000000000 dm |
| 1 ly = | 31039041994750656.168 ft |
| 1 ly = | 10346347331583552.0560 yd |
| 1 ly = | 9460700000000000 m |
| 1 ly = | 9460700000000 km |
| 1 ly = | 5878606438399.745 mi |
| 1 ly = | 5108369330453.564 n.m. |
| 1 ly = | 1959535479466.582 lea |
| 1 ly = | 63240.873 AU |
| 1 ly = | 0.307 pc |