Knots (kn) to Feet per second (ft/s) Conversion
Knots
The knot is a unit of speed equal to exactly one nautical mile per hour (1.852 km/h), the standard unit for maritime and aerial navigation worldwide. Its name derives from the historical practice of measuring ship speed using a knotted rope thrown overboard. Because the nautical mile is tied to the Earth's geometry (one arcminute of latitude), a ship at 1 knot crosses one arcminute of latitude per hour.
Feet per second
Feet per second (ft/s) is a unit of speed in the US customary and imperial systems equal to approximately 0.3048 m/s or 1.09728 km/h. It is commonly used in ballistics to express projectile velocities, in structural engineering for wind speed calculations, and in sports science. The speed of sound at sea level is approximately 1,125 ft/s (343 m/s), a reference used in firearms and aeronautics.
| Knots (kn) | Feet per second (ft/s) |
|---|---|
| 0.1 kn | 0.1688 ft/s |
| 1 kn | 1.6878 ft/s |
| 2 kn | 3.3756 ft/s |
| 3 kn | 5.0634 ft/s |
| 5 kn | 8.439 ft/s |
| 10 kn | 16.8781 ft/s |
| 20 kn | 33.7562 ft/s |
| 30 kn | 50.6343 ft/s |
| 50 kn | 84.3905 ft/s |
| 100 kn | 168.781 ft/s |
| 1000 kn | 1,687.8099 ft/s |
Frequently Asked Questions (FAQ)
How many feet per second are in 1 knots?
1 knots (kn) is exactly 1.6878 feet per second (ft/s).
How do I convert knots to feet per second?
Multiply the value in knots by 1.6878 to get the result in feet per second. Or use the converter above — type any number and see the result instantly.