Convert Knots to Feet per Second
kn to ft/s · speed conversion
What are knots and feet per second?
A knot is one nautical mile per hour (1.852 km/h), used in aviation and shipping. Feet per second is an imperial speed unit used in ballistics and some engineering. For reference: a brisk walk is about 5 km/h (3 mph), and highway speed is around 100 km/h (62 mph).
How to convert knots to feet per second
1 kn = 1.68781 ft/s. To convert, multiply the number of knots by 1.68781. For example, 5 kn = 8.43904 ft/s, and 20 kn = 33.7562 ft/s. To go the other way, multiply feet per second by 0.592484 (since 1 ft/s = 0.592484 kn).
Knots to Feet per Second conversion table
| Knots (kn) | Feet per Second (ft/s) |
|---|---|
| 1 | 1.68781 |
| 5 | 8.43904 |
| 10 | 16.8781 |
| 30 | 50.6343 |
| 60 | 101.269 |
| 100 | 168.781 |
| 120 | 202.537 |
FAQ
What is 1 kn in ft/s?
1 kn = 1.68781 ft/s. To convert any amount, multiply the number of knots by 1.68781.
How do I convert feet per second back to knots?
Go the other way: 1 ft/s = 0.592484 kn, so multiply feet per second by 0.592484 to get knots.
Is a knot bigger than a feet per second?
Yes — 1 kn is the larger unit, equal to 1.68781 ft/s.
Are these speed conversions exact?
They use the standard internationally-defined conversion factors. Results are rounded to six significant figures for readability, which is accurate enough for everyday and most technical use.