100 light years to feet
100 ly = 3.1039 × 10^18 ft. Change the amount below, or read the formula and the reference table further down.
100 light years equals
feet
1 ly = 3.1039 × 10^16 ft
The formula
Light years and feet both measure length from the same zero, so a single multiplier does the job.
ft = ly × 3.1039 × 10^16
Going the other way? Convert feet to light years.
Light years to feet table
Values either side of 100 ly.
| Light years (ly) | Feet (ft) |
|---|---|
| 0 | 0 |
| 10 | 3.1039 × 10^17 |
| 20 | 6.2078 × 10^17 |
| 30 | 9.3117 × 10^17 |
| 40 | 1.2416 × 10^18 |
| 50 | 1.5520 × 10^18 |
| 60 | 1.8623 × 10^18 |
| 70 | 2.1727 × 10^18 |
| 80 | 2.4831 × 10^18 |
| 90 | 2.7935 × 10^18 |
| 100 | 3.1039 × 10^18 |
| 110 | 3.4143 × 10^18 |
| 120 | 3.7247 × 10^18 |
| 130 | 4.0351 × 10^18 |
| 140 | 4.3455 × 10^18 |
| 150 | 4.6559 × 10^18 |
| 160 | 4.9663 × 10^18 |
| 170 | 5.2767 × 10^18 |
| 180 | 5.5870 × 10^18 |
| 190 | 5.8974 × 10^18 |
| 200 | 6.2078 × 10^18 |
Questions people ask
- How many feet are in a light year?
- One light year equals 3.1039 × 10^16 feet.
- How do I convert light years to feet by hand?
- Multiply the number of light years by 3.1039 × 10^16. For a rough check, 3.1039 × 10^16 is close enough for most everyday use.
- What is 100 light years in feet?
- 100 light years is 3.1039 × 10^18 feet.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.