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Light Year to Foot Converter

Convert light years (ly) to feet (ft). 1 ly = 3.103914197 × 10¹⁶ ft.

1 ly = 3.103914197 × 10¹⁶ ft

Foot to Light Year converter

How to convert light years to feet

1 light year is equal to 3.103914197 × 10¹⁶ feet, and 1 foot is equal to 3.221738542 × 10⁻¹⁷ light years. To convert, multiply by the conversion factor:

feet = light years × 3.103914197 × 10¹⁶
feet = light years ÷ 3.221738542 × 10⁻¹⁷

Example: convert 1 ly to ft: 1 × 3.103914197 × 10¹⁶ = 3.103914197 × 10¹⁶ ft.

Light Year to Foot conversion table

Light Year (ly)Foot (ft)
0.01 ly310,391,419,700,000 ft
0.1 ly3.103914197 × 10¹⁵ ft
1 ly3.103914197 × 10¹⁶ ft
2 ly6.207828394 × 10¹⁶ ft
3 ly9.311742591 × 10¹⁶ ft
5 ly1.551957099 × 10¹⁷ ft
10 ly3.103914197 × 10¹⁷ ft
20 ly6.207828394 × 10¹⁷ ft
50 ly1.551957099 × 10¹⁸ ft
100 ly3.103914197 × 10¹⁸ ft
250 ly7.759785493 × 10¹⁸ ft
500 ly1.551957099 × 10¹⁹ ft
1,000 ly3.103914197 × 10¹⁹ ft

About the light year

A light-year is the distance light travels in a vacuum in one Julian year (365.25 days): about 9.46 trillion km. The nearest star system, Alpha Centauri, is about 4.37 light-years away.

Symbol: ly · 1 ly = 9.460730473 × 10¹⁵ m · Category: Astronomical

About the foot

The international foot is exactly 0.3048 m, or 12 inches. It's used in the US and UK for height, building dimensions and aircraft altitude.

Symbol: ft · 1 ft = 0.3048 m · Category: Imperial & US customary

Frequently asked questions

How many feet are in a light year?

There are 3.103914197 × 10¹⁶ feet in 1 light year (ly).

How many light years are in a foot?

1 foot (ft) equals 3.221738542 × 10⁻¹⁷ light years.

How do I convert light years to feet?

Multiply the length in light years by 3.103914197 × 10¹⁶. For example, 1 ly × 3.103914197 × 10¹⁶ = 3.103914197 × 10¹⁶ ft.

How do I convert feet to light years?

Divide the length in feet by 3.103914197 × 10¹⁶, or multiply it by 3.221738542 × 10⁻¹⁷. You can also use the Foot to Light Year converter.