Light-years to kilometers
1 light-year in kilometers
1 ly = 9,460,730,500,000 km
km = ly × 9,460,730,473,000
To convert light-years to kilometers, multiply by 9,460,730,473,000. The table below gives the values people look up most often, and the converter works for any number.
Light-years to kilometers table
| Light-years | Kilometers |
|---|---|
| 1 ly | 9,460,730,500,000 |
| 2 ly | 18,921,461,000,000 |
| 3 ly | 28,382,191,000,000 |
| 4 ly | 37,842,922,000,000 |
| 5 ly | 47,303,652,000,000 |
| 10 ly | 94,607,305,000,000 |
| 15 ly | 141,910,960,000,000 |
| 20 ly | 189,214,610,000,000 |
| 25 ly | 236,518,260,000,000 |
| 30 ly | 283,821,910,000,000 |
| 40 ly | 378,429,220,000,000 |
| 50 ly | 473,036,520,000,000 |
| 75 ly | 709,554,790,000,000 |
| 100 ly | 946,073,050,000,000 |
| 250 ly | 2.3651826 × 10^15 |
| 500 ly | 4.7303652 × 10^15 |
| 1,000 ly | 9.4607305 × 10^15 |
How the conversion works
The relationship is km = ly × 9,460,730,473,000. Both units measure length, so the conversion is a fixed factor that never changes.
Common questions
- How many kilometers are in one light-year?
- One light-year equals 9,460,730,500,000 kilometers. km = ly × 9,460,730,473,000.
- How do you convert light-years to kilometers?
- Use km = ly × 9,460,730,473,000. So 10 ly is 94,607,305,000,000 km.
- How many light-years are in one kilometer?
- One kilometer equals 1.057 × 10^-13 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