To convert light years to fathoms, multiply the value by 5.17319 × 10¹⁵. To go the other way, multiply fathoms by 1.93304 × 10⁻¹⁶ to get light years.
| Light Years (ly) | Fathoms (ftm) |
|---|---|
| 1 ly | 5.17319 × 10¹⁵ ftm |
| 2 ly | 1.03464 × 10¹⁶ ftm |
| 3 ly | 1.55196 × 10¹⁶ ftm |
| 4 ly | 2.06928 × 10¹⁶ ftm |
| 5 ly | 2.5866 × 10¹⁶ ftm |
| 6 ly | 3.10391 × 10¹⁶ ftm |
| 7 ly | 3.62123 × 10¹⁶ ftm |
| 8 ly | 4.13855 × 10¹⁶ ftm |
| 9 ly | 4.65587 × 10¹⁶ ftm |
| 10 ly | 5.17319 × 10¹⁶ ftm |
| 12 ly | 6.20783 × 10¹⁶ ftm |
| 14 ly | 7.24247 × 10¹⁶ ftm |
| 15 ly | 7.75979 × 10¹⁶ ftm |
| 20 ly | 1.03464 × 10¹⁷ ftm |
| 21 ly | 1.08637 × 10¹⁷ ftm |
| 24 ly | 1.24157 × 10¹⁷ ftm |
| 25 ly | 1.2933 × 10¹⁷ ftm |
| 30 ly | 1.55196 × 10¹⁷ ftm |
| 40 ly | 2.06928 × 10¹⁷ ftm |
| 50 ly | 2.5866 × 10¹⁷ ftm |
| 60 ly | 3.10391 × 10¹⁷ ftm |
| 75 ly | 3.87989 × 10¹⁷ ftm |
| 80 ly | 4.13855 × 10¹⁷ ftm |
| 100 ly | 5.17319 × 10¹⁷ ftm |
| 200 ly | 1.03464 × 10¹⁸ ftm |
| 250 ly | 1.2933 × 10¹⁸ ftm |
| 300 ly | 1.55196 × 10¹⁸ ftm |
| 400 ly | 2.06928 × 10¹⁸ ftm |
| 500 ly | 2.5866 × 10¹⁸ ftm |
| 750 ly | 3.87989 × 10¹⁸ ftm |
| 1,000 ly | 5.17319 × 10¹⁸ ftm |
Light year (ly). A light year is the distance light travels in one year, about 9.46 trillion kilometers.
Fathom (ftm). A fathom is 6 feet (1.8288 m), traditionally used to measure the depth of water.
There are 5.17319 × 10¹⁵ fathoms in one light year.
Multiply the number of light years by 5.17319 × 10¹⁵. For example, 10 light years equal 5.17319 × 10¹⁶ fathoms.
One fathom equals 1.93304 × 10⁻¹⁶ light years.
6.20783 × 10¹⁶ fathoms. Other common values: 5 light years = 2.5866 × 10¹⁶ fathoms and 100 light years = 5.17319 × 10¹⁷ fathoms.