LENGTH CONVERSION

Light-year to Foot.

Convert light-year (ly) to foot (ft), with the math explained.

Length converter
ly
3.103914197e16ft
THE RESULT

1 ly = 3.103914197e16 ft

Calculated in your browserFormula & conversion table

THE MATH, MADE SIMPLE

How to convert light-year to foot

Multiply your light-year value by 3.10391419704e16 to get the equivalent in foot. Both units are normalized through the meter.

CONVERSION FORMULAft = ly × 3.103914197e16
WORKED EXAMPLE

10 ly = 3.10391419704e17 ft

Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.

QUICK REFERENCE

ly to ft conversion table

Reverse
Light-year (ly)Foot (ft)
1 ly3.10391419704e16 ft
2 ly6.20782839408e16 ft
5 ly1.55195709852e17 ft
10 ly3.10391419704e17 ft
20 ly6.20782839408e17 ft
50 ly1.55195709852e18 ft
100 ly3.10391419704e18 ft
500 ly1.55195709852e19 ft
1,000 ly3.10391419704e19 ft
ly

About the light-year

The light-year (ly) is a unit of length. One light-year equals 9.46073047258e15 meter (base unit) in this calculator.

All light-year conversions
ft

About the foot

The foot (ft) is a unit of length. One foot equals 0.3048 meter (base unit) in this calculator.

All foot conversions

Common questions

What is 1 ly in ft?

One light-year equals 3.10391419704e16 ft. Use the formula above for other values.

Why might another calculator show a different last digit?

Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.

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