Light Years to Nanometers Converter
Convert light years (ly) to nanometers (nm)
Result
1 ly = 9.4607305 × 10²⁴ nm
1 ly in other units
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How to convert light years to nanometers
One light year equals 9.46073 × 10²⁴ nanometers, so multiply the number of light years by 9.46073 × 10²⁴.
nm = ly × 9.46073 × 10²⁴
1 ly = 9.46073 × 10²⁴ nm · 1 nm = 1.057001 × 10⁻²⁵ ly
Worked example
To convert 5 light years to nanometers: 5 ly × 9.46073 × 10²⁴ = 4.730365 × 10²⁵ nm.
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 nanometers (nm)
A nanometer is one billionth of a metre. It is used for wavelengths of light and the size of molecules and computer chip features.
More conversions
Light Years to other units
Frequently asked questions
How many nanometers are in one light year?
One light year equals 9.46073 × 10²⁴ nanometers.
How many light years are in one nanometer?
One nanometer equals 1.057001 × 10⁻²⁵ light years.
How do I convert light years to nanometers?
Use the formula nm = ly × 9.46073 × 10²⁴. For example, 5 ly × 9.46073 × 10²⁴ = 4.730365 × 10²⁵ nm.