Light-years to inches
1 light-year in inches
1 ly = 3.724697 × 10^17 in
in = ly × 3.724697036 × 10^17
To convert light-years to inches, multiply by 3.724697036 × 10^17. The table below gives the values people look up most often, and the converter works for any number.
Light-years to inches table
| Light-years | Inches |
|---|---|
| 1 ly | 3.724697 × 10^17 |
| 2 ly | 7.4493941 × 10^17 |
| 3 ly | 1.1174091 × 10^18 |
| 4 ly | 1.4898788 × 10^18 |
| 5 ly | 1.8623485 × 10^18 |
| 10 ly | 3.724697 × 10^18 |
| 15 ly | 5.5870456 × 10^18 |
| 20 ly | 7.4493941 × 10^18 |
| 25 ly | 9.3117426 × 10^18 |
| 30 ly | 1.1174091 × 10^19 |
| 40 ly | 1.4898788 × 10^19 |
| 50 ly | 1.8623485 × 10^19 |
| 75 ly | 2.7935228 × 10^19 |
| 100 ly | 3.724697 × 10^19 |
| 250 ly | 9.3117426 × 10^19 |
| 500 ly | 1.8623485 × 10^20 |
| 1,000 ly | 3.724697 × 10^20 |
How the conversion works
The relationship is in = ly × 3.724697036 × 10^17. 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 inches are in one light-year?
- One light-year equals 3.724697 × 10^17 inches. in = ly × 3.724697036 × 10^17.
- How do you convert light-years to inches?
- Use in = ly × 3.724697036 × 10^17. So 10 ly is 3.724697 × 10^18 in.
- How many light-years are in one inch?
- One inch equals 2.685 × 10^-18 light-years, 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