1 knot to feet per second
1 kn = 1.68781 ft/s. Change the amount below, or read the formula and the reference table further down.
1 knot equals
feet per second
1 kn = 1.68781 ft/s
The formula
Knots and feet per second both measure speed from the same zero, so a single multiplier does the job.
ft/s = kn × 1.68780986
Going the other way? Convert feet per second to knots.
Knots to feet per second table
Values either side of 1 kn.
| Knots (kn) | Feet per second (ft/s) |
|---|---|
| -4 | -6.7512 |
| -3.5 | -5.9073 |
| -3 | -5.0634 |
| -2.5 | -4.2195 |
| -2 | -3.3756 |
| -1.5 | -2.5317 |
| -1 | -1.6878 |
| -0.5 | -0.843905 |
| 0 | 0 |
| 0.5 | 0.843905 |
| 1 | 1.6878 |
| 1.5 | 2.5317 |
| 2 | 3.3756 |
| 2.5 | 4.2195 |
| 3 | 5.0634 |
| 3.5 | 5.9073 |
| 4 | 6.7512 |
| 4.5 | 7.5951 |
| 5 | 8.439 |
| 5.5 | 9.283 |
| 6 | 10.1269 |
Questions people ask
- How many feet per second are in a knot?
- One knot equals 1.68780986 feet per second.
- How do I convert knots to feet per second by hand?
- Multiply the number of knots by 1.68780986. For a rough check, 1.7 is close enough for most everyday use.
- What is 1 knot in feet per second?
- 1 knot is 1.68781 feet per second.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.