Convert centimeters to light-years
1 cm = 0.00000000000000000105700083402 ly — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1.05700083402e-18ly
As a fraction: 1/946073047258080000
1 cm = 0.00000000000000000105700083402 ly
How to convert centimeters to light-years
Multiply the number of centimeters by 0.00000000000000000105700083402 to get light-years.
Light-year: Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.
Centimeter to Light-year conversion table
| Centimeters (cm) | Light-years (ly) |
|---|---|
| 1 cm | 1.0570008e-18 |
| 2 cm | 2.1140017e-18 |
| 3 cm | 3.1710025e-18 |
| 5 cm | 5.2850042e-18 |
| 10 cm | 1.0570008e-17 |
| 20 cm | 2.1140017e-17 |
| 25 cm | 2.6425021e-17 |
| 50 cm | 5.2850042e-17 |
| 100 cm | 1.0570008e-16 |
| 250 cm | 2.6425021e-16 |
| 500 cm | 5.2850042e-16 |
| 1000 cm | 1.0570008e-15 |
Light-year to Centimeter conversion table
| Light-years (ly) | Centimeters (cm) |
|---|---|
| 1 ly | 9.4607305e+17 |
| 2 ly | 1.8921461e+18 |
| 3 ly | 2.8382191e+18 |
| 5 ly | 4.7303652e+18 |
| 10 ly | 9.4607305e+18 |
| 20 ly | 1.8921461e+19 |
| 25 ly | 2.3651826e+19 |
| 50 ly | 4.7303652e+19 |
| 100 ly | 9.4607305e+19 |
| 250 ly | 2.3651826e+20 |
| 500 ly | 4.7303652e+20 |
| 1000 ly | 9.4607305e+20 |
Frequently asked
How many light-years are in a centimeter?
One centimeter equals 1.057000834e-18 light-years (cm → ly). That figure is exact, not rounded.
How do you convert centimeters to light-years?
Multiply the number of centimeters by 0.00000000000000000105700083402 to get light-years.
What is 1 ly in centimeters?
One light-year is 9.460730473e+17 centimeters.
What is 10 cm in ly?
10 cm = 1.0570008e-17 ly.
What exactly is a light-year?
Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.