Inches to Light Years Converter
Convert inches (in) to light years (ly)
Result
2.6847821 × 10⁻¹⁸ ly
Light Years
1 in = 2.6847821 × 10⁻¹⁸ ly
1 in in other units
- 1Enter a valueType the number to convert
- 2Pick the unitsChoose what to convert from and to
- 3Read the resultSee it in every other unit too
How to convert inches to light years
There are 3.724697 × 10¹⁷ inches in one light year, so divide the number of inches by 3.724697 × 10¹⁷.
ly = in ÷ 3.724697 × 10¹⁷
1 in = 2.684782 × 10⁻¹⁸ ly · 1 ly = 3.724697 × 10¹⁷ in
Worked example
To convert 5 inches to light years: 5 in ÷ 3.724697 × 10¹⁷ = 1.342391 × 10⁻¹⁷ ly.
About inches (in)
An inch is exactly 2.54 cm. It is used for screen sizes, pipe sizes, and lengths in the US and UK.
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.
More conversions
Inches to other units
Frequently asked questions
How many light years are in one inch?
One inch equals 2.684782 × 10⁻¹⁸ light years.
How many inches are in one light year?
One light year equals 3.724697 × 10¹⁷ inches.
How do I convert inches to light years?
Use the formula ly = in ÷ 3.724697 × 10¹⁷. For example, 5 in ÷ 3.724697 × 10¹⁷ = 1.342391 × 10⁻¹⁷ ly.