1 light year to inches
1 ly = 3.7247 × 10^17 in. Change the amount below, or read the formula and the reference table further down.
1 light year equals
inches
1 ly = 3.7247 × 10^17 in
The formula
Light years and inches both measure length from the same zero, so a single multiplier does the job.
in = ly × 3.7247 × 10^17
Going the other way? Convert inches to light years.
Light years to inches table
Values either side of 1 ly.
| Light years (ly) | Inches (in) |
|---|---|
| -4 | -1.4899 × 10^18 |
| -3.5 | -1.3036 × 10^18 |
| -3 | -1.1174 × 10^18 |
| -2.5 | -9.3117 × 10^17 |
| -2 | -7.4494 × 10^17 |
| -1.5 | -5.5870 × 10^17 |
| -1 | -3.7247 × 10^17 |
| -0.5 | -1.8623 × 10^17 |
| 0 | 0 |
| 0.5 | 1.8623 × 10^17 |
| 1 | 3.7247 × 10^17 |
| 1.5 | 5.5870 × 10^17 |
| 2 | 7.4494 × 10^17 |
| 2.5 | 9.3117 × 10^17 |
| 3 | 1.1174 × 10^18 |
| 3.5 | 1.3036 × 10^18 |
| 4 | 1.4899 × 10^18 |
| 4.5 | 1.6761 × 10^18 |
| 5 | 1.8623 × 10^18 |
| 5.5 | 2.0486 × 10^18 |
| 6 | 2.2348 × 10^18 |
Questions people ask
- How many inches are in a light year?
- One light year equals 3.7247 × 10^17 inches.
- How do I convert light years to inches by hand?
- Multiply the number of light years by 3.7247 × 10^17. For a rough check, 3.7247 × 10^17 is close enough for most everyday use.
- What is 1 light year in inches?
- 1 light year is 3.7247 × 10^17 inches.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.