Light Years to Centimeters Converter
Convert light years (ly) to centimeters (cm)
Result
1 ly = 9.4607305 × 10¹⁷ cm
1 ly in other units
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How to convert light years to centimeters
One light year equals 9.46073 × 10¹⁷ centimeters, so multiply the number of light years by 9.46073 × 10¹⁷.
cm = ly × 9.46073 × 10¹⁷
1 ly = 9.46073 × 10¹⁷ cm · 1 cm = 1.057001 × 10⁻¹⁸ ly
Worked example
To convert 5 light years to centimeters: 5 ly × 9.46073 × 10¹⁷ = 4.730365 × 10¹⁸ cm.
About light years (ly)
A light year is the distance light travels in one Julian year, about 9.46 trillion km. It is used for distances between stars.
About centimeters (cm)
A centimeter is one hundredth of a metre. It is the everyday unit for body height and small objects in most of the world.
More conversions
Light Years to other units
Frequently asked questions
How many centimeters are in one light year?
One light year equals 9.46073 × 10¹⁷ centimeters.
How many light years are in one centimeter?
One centimeter equals 1.057001 × 10⁻¹⁸ light years.
How do I convert light years to centimeters?
Use the formula cm = ly × 9.46073 × 10¹⁷. For example, 5 ly × 9.46073 × 10¹⁷ = 4.730365 × 10¹⁸ cm.