Inches to light-years
1 inch in light-years
1 in = 2.685 × 10^-18 ly
ly = in × 2.684782118 × 10^-18
To convert inches to light-years, multiply by 2.684782118 × 10^-18. The table below gives the values people look up most often, and the converter works for any number.
Inches to light-years table
| Inches | Light-years |
|---|---|
| 1 in | 2.685 × 10^-18 |
| 2 in | 5.37 × 10^-18 |
| 3 in | 8.054 × 10^-18 |
| 4 in | 1.074 × 10^-17 |
| 5 in | 1.342 × 10^-17 |
| 10 in | 2.685 × 10^-17 |
| 15 in | 4.027 × 10^-17 |
| 20 in | 5.37 × 10^-17 |
| 25 in | 6.712 × 10^-17 |
| 30 in | 8.054 × 10^-17 |
| 40 in | 1.074 × 10^-16 |
| 50 in | 1.342 × 10^-16 |
| 75 in | 2.014 × 10^-16 |
| 100 in | 2.685 × 10^-16 |
| 250 in | 6.712 × 10^-16 |
| 500 in | 1.342 × 10^-15 |
| 1,000 in | 2.685 × 10^-15 |
How the conversion works
The relationship is ly = in × 2.684782118 × 10^-18. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.
Common questions
- How many light-years are in one inch?
- One inch equals 2.685 × 10^-18 light-years. ly = in × 2.684782118 × 10^-18.
- How do you convert inches to light-years?
- Use ly = in × 2.684782118 × 10^-18. So 10 in is 2.685 × 10^-17 ly.
- How many inches are in one light-year?
- One light-year equals 3.724697 × 10^17 inches, which is the reverse of the conversion above.
Related pages
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place