| 1 au | 1.58125E-5 ly |
| 2 au | 3.1625E-5 ly |
| 3 au | 4.74375E-5 ly |
| 4 au | 6.325E-5 ly |
| 5 au | 7.90625E-5 ly |
| 6 au | 9.4875E-5 ly |
| 7 au | 0.0001106876 ly |
| 8 au | 0.0001265001 ly |
| 9 au | 0.0001423126 ly |
| 10 au | 0.0001581251 ly |
| 11 au | 0.0001739376 ly |
| 12 au | 0.0001897501 ly |
| 13 au | 0.0002055626 ly |
| 14 au | 0.0002213751 ly |
| 15 au | 0.0002371876 ly |
| 16 au | 0.0002530001 ly |
| 17 au | 0.0002688126 ly |
| 18 au | 0.0002846251 ly |
| 19 au | 0.0003004376 ly |
| 20 au | 0.0003162501 ly |
| 30 au | 0.0004743752 ly |
| 40 au | 0.0006325003 ly |
| 50 au | 0.0007906254 ly |
| 60 au | 0.0009487504 ly |
| 70 au | 0.0011068755 ly |
| 80 au | 0.0012650006 ly |
| 90 au | 0.0014231257 ly |
| 100 au | 0.0015812507 ly |
To convert astronomical units to lightyears you simply multiply your astronomical units by 1.58125E-5. The formula would look like this:
| Meter | 149597870700 |
| Kilometer | 149597870.7 |
| Decimeter | 1495978707000 |
| Centimeter | 14959787070000 |
| Milimeter | 1.495978707E+14 |
| Micrometer | 1.495978707E+17 |
| Nanometer | 1.495978707E+20 |
| Picometer | 1.495978707E+23 |
| Inch | 5889679948818.9 |
| Foot | 490806662401.58 |
| Yard | 163602220800.52 |
| Mile | 92955807.273 |
| Hand | 1472419987204.7 |
