Knots to Feet per Second Converter
Convert knots (kn) to feet per second (ft/s), with the formula, a conversion table and exact factors.
Change the values and press Calculate to work out your own figures.
Enter a speed, choose its unit and the unit you want. The answer is exact until it is shown, and the same value appears in every other unit.
Show the working
- 1 kn = 1.6878098571 ft/s
- 1 × 1.6878098571 = 1.6878098571 ft/s
How to convert knots to feet per second
1 kn = 1.6878098571 ft/s, so multiply by 1.6878098571 to go from knots to feet per second. Going the other way, 1 ft/s = 0.592483801296 kn.
ft/s = kn × 1.6878098571 kn = ft/s × 0.592483801296
Worked example:
1 kn = 1.6878098571 ft/s 5 × 1.6878098571 = 8.43904928551 ft/s
Knots to feet per second table
| Knots | Feet per Second |
|---|---|
| 1 kn | 1.6878098571 ft/s |
| 2 kn | 3.3756197142 ft/s |
| 3 kn | 5.0634295713 ft/s |
| 4 kn | 6.7512394284 ft/s |
| 5 kn | 8.43904928551 ft/s |
| 6 kn | 10.1268591426 ft/s |
| 7 kn | 11.8146689997 ft/s |
| 8 kn | 13.5024788568 ft/s |
| 9 kn | 15.1902887139 ft/s |
| 10 kn | 16.878098571 ft/s |
| 15 kn | 25.3171478565 ft/s |
| 20 kn | 33.756197142 ft/s |
| 25 kn | 42.1952464275 ft/s |
| 30 kn | 50.634295713 ft/s |
| 40 kn | 67.512394284 ft/s |
| 50 kn | 84.3904928551 ft/s |
| 75 kn | 126.585739283 ft/s |
| 100 kn | 168.78098571 ft/s |
| 250 kn | 421.952464275 ft/s |
| 500 kn | 843.904928551 ft/s |
| 1000 kn | 1,687.8098571 ft/s |
About the units
- Knots (kn)
- Knots, a specialised unit. Definition: NIST SP 811 Appendix B.8, factors for units listed alphabetically.
- Feet per Second (ft/s)
- Feet per second, a US customary unit. Definition: NIST Handbook 44 (2024), Appendix C: General Tables of Units of Measurement.