Light Years to Feet Converter

Convert light years to feet with accurate formulas, examples and conversion tables.

Length conversion

Calculator

Results update instantly. Use Calculate to confirm the current conversion.

Decimals and negative values are supported.

Result

3.1039142e16 ft

1 ly ≈ 3.1039142e16 ft

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Conversion table

Common light years to feet values, generated from the selected units.

light years (ly)feet (ft)
1 light year3.1039142e16 feet
5 light years1.5519571e17 feet
10 light years3.1039142e17 feet
20 light years6.20782839e17 feet
50 light years1.5519571e18 feet
100 light years3.1039142e18 feet

Conversion Formula

Multiply the value in light years by 3.103914197041e16 to get feet.

Formulaft = ly × 3.103914197041e16

Example

Convert 1 light year to feet:

1 × 3.103914197041e16= 3.1039142e16 ft

Unit information

Concise reference information for the selected source and target units.

Light year (ly)

Scientific
1 ly = 9.460730472581e15 m
Definition
A light year is the distance light travels in vacuum during one Julian year.
Usage
Used to describe distances between stars and other objects beyond the solar system.

Foot (ft)

Imperial
1 ft = 0.3048 m
Definition
One international foot equals exactly 0.3048 meters or 12 inches.
Usage
Used for height, buildings, aviation altitude, and property measurements.

Frequently asked questions

How many feet are in 1 light year?

1 light year equals 3.103914197041e16 feet.

How do you convert light years to feet?

Multiply the value in light years by 3.103914197041e16 to get feet. The formula is ft = ly × 3.103914197041e16.

What is 10 light years in feet?

10 light years is approximately 3.1039142e17 feet.