Convert light years (ly) to fathoms (ftm) with formulas, examples, and conversion tables.
How to Convert light years to fathoms
To convert light years to fathoms, multiply the value by 5.17333770779e15.
The Formula
fathoms = light years × 5.17333770779e15
Key Fact
1 light year = 5.17333770779e15 fathoms
Tip: To convert fathoms back to light years, divide by 5.17333770779e15.
About Light Years and Fathoms
What is a Light Year?
The light year (ly) is a unit of length in the astronomical system. One light year equals 9461000000000000 meters.
What is a Fathom?
The fathom (ftm) is a unit of length in the nautical system. One fathom equals 1.8288 meters.