5 knots to feet per second
5 kn = 8.439049 ft/s. Change the amount below, or read the formula and the reference table further down.
5 knots 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 5 kn.
| Knots (kn) | Feet per second (ft/s) |
|---|---|
| 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 |
| 6.5 | 10.9708 |
| 7 | 11.8147 |
| 7.5 | 12.6586 |
| 8 | 13.5025 |
| 8.5 | 14.3464 |
| 9 | 15.1903 |
| 9.5 | 16.0342 |
| 10 | 16.8781 |
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 5 knots in feet per second?
- 5 knots is 8.439049 feet per second.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.