Convert light-years to centimeters

1 ly = 946073047258000000 cm — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.

9.46073047258e+17cm
≈ Rounded to 12 s.f. 1 ly ≈ 9.46073047258e+17 cm
Exact decimal: 946073047258080000
1 ly = 946073047258000000 cm

How to convert light-years to centimeters

Multiply the number of light-years by 946073047258000000 to get centimeters.

The exact factor is 946073047258080000 .

Light-year: Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.

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

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

Frequently asked

How many centimeters are in a light-year?

One light-year equals 9.460730473e+17 centimeters (ly → cm). That figure is exact, not rounded.

How do you convert light-years to centimeters?

Multiply the number of light-years by 946073047258000000 to get centimeters.

What is 1 cm in light-years?

One centimeter is 1.057000834e-18 light-years.

What is 10 ly in cm?

10 ly = 9.4607305e+18 cm.

What exactly is a light-year?

Light travelling for one Julian year (365.25 days) in vacuum — exact, since both inputs are defined values.

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