Light-year to Centimeter (ly → cm)
Convert light-year to centimeter instantly. The conversion factor below is exact by international definition.
Realtime·length·astronomical
Exact
ly
× 946,073,047,258,080,000
cm
946,073,047,258,080,000
Precision [auto]
6
📐ly to cm formulaExact
cm = ly × 9.460730e+17
Inverse: ly = cm × 1.057001e-18
Worked example: 1 ly = 9.460730e+17 cm
ℹ️About these units
Light-year (ly)
Source: IAU: 1 ly = 365.25 d × c (exact).
Centimeter (cm)
📊Reference table: ly → cm
| Light-year (ly) | Centimeter (cm) |
|---|---|
| 1 | 946,073,047,258,080,000 |
| 2 | 1,892,146,094,516,160,000 |
| 5 | 4,730,365,236,290,400,000 |
| 10 | 9,460,730,472,580,800,000 |
| 15 | 14,191,095,708,871,199,000 |
| 20 | 18,921,460,945,161,600,000 |
| 25 | 23,651,826,181,452,000,000 |
| 50 | 47,303,652,362,904,000,000 |
| 100 | 94,607,304,725,808,000,000 |
| 250 | 236,518,261,814,520,020,000 |
| 500 | 473,036,523,629,040,040,000 |
| 750 | 709,554,785,443,560,000,000 |
| 1,000 | 946,073,047,258,080,100,000 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
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