Convert Light Years to Feet
1 light year = 3.103914e+16 feet. Type any value below to convert in either direction — the calculation happens in your browser.
Light Years to Feet formula
Multiply the number of light years by 3.103914e+16 to get feet.
feet = light years × 3.103914e+16To go the other way: divide the number of feet by 3.103914e+16, or multiply by 3.221739e-17.
light years = feet ÷ 3.103914e+16Light Years to Feet conversion table
| Light Years | Feet |
|---|---|
| 1 ly | 3.103914e+16 ft |
| 2 ly | 6.207828e+16 ft |
| 3 ly | 9.311743e+16 ft |
| 4 ly | 1.241566e+17 ft |
| 5 ly | 1.551957e+17 ft |
| 6 ly | 1.862349e+17 ft |
| 7 ly | 2.172740e+17 ft |
| 8 ly | 2.483131e+17 ft |
| 9 ly | 2.793523e+17 ft |
| 10 ly | 3.103914e+17 ft |
| 15 ly | 4.655871e+17 ft |
| 20 ly | 6.207828e+17 ft |
| 25 ly | 7.759785e+17 ft |
| 30 ly | 9.311743e+17 ft |
| 40 ly | 1.241566e+18 ft |
| 50 ly | 1.551957e+18 ft |
| 75 ly | 2.327936e+18 ft |
| 100 ly | 3.103914e+18 ft |
| 250 ly | 7.759785e+18 ft |
| 500 ly | 1.551957e+19 ft |
| 1,000 ly | 3.103914e+19 ft |
Feet to Light Years conversion table
| Feet | Light Years |
|---|---|
| 1 ft | 3.221739e-17 ly |
| 2 ft | 6.443477e-17 ly |
| 3 ft | 9.665216e-17 ly |
| 4 ft | 1.288695e-16 ly |
| 5 ft | 1.610869e-16 ly |
| 6 ft | 1.933043e-16 ly |
| 7 ft | 2.255217e-16 ly |
| 8 ft | 2.577391e-16 ly |
| 9 ft | 2.899565e-16 ly |
| 10 ft | 3.221739e-16 ly |
About the light year
A light year is the distance light travels in one Julian year, about 9.46 trillion kilometres.
About the foot
A foot is exactly 0.3048 metres, or 12 inches, and remains the standard unit for human height and aviation altitude.
Frequently asked questions
How many feet are in a light year?
There are 3.103914e+16 feet in one light year.
How many light years are in a foot?
There are 3.221739e-17 light years in one foot.
Is this conversion exact?
The ratio between the light year and the foot is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 light years in feet?
10 light years equals 3.103914e+17 feet.