Convert Knot to Feet per Second
Instantly convert Knot (kn) to Feet per Second (ft/s). Free and accurate.
About This Conversion
What is a Knot to Feet per Second conversion?
One knot (kn) is equal to 1.6878084 feet per second (ft/s). This relationship is fixed by international measurement standards and does not change. To convert any number of knot to feet per second, multiply your value by 1.6878084; to go the other way, divide by 1.6878084.
How to convert Knot to Feet per Second
The conversion formula is: 1 kn = 1.6878084 ft/s. Enter any value into the converter above and the result updates instantly. The formula is also shown alongside the answer so you can check the working or use it in your own calculations.
Where is this conversion used?
Speed conversions are used in road travel, aviation, maritime navigation, athletics, and meteorology. Miles per hour (mph) is common in the UK and USA, kilometres per hour (km/h) is the global metric standard, and knots are used at sea and in aviation. Pilots, sailors, meteorologists, race engineers, and transport planners convert between speed units regularly. The speed of sound at sea level is roughly 343 m/s, 1,235 km/h, or 767 mph — a useful benchmark for high-speed calculations.
Helpful tip
A quick approximation: 100 km/h is roughly 62 mph. To convert mentally, multiply km/h by 0.6 for a close estimate in mph.
Formula
1 kn = 1.6878084 ft/s
kn to ft/s Conversion Table
| kn | ft/s |
|---|---|
| 0.1 kn | 0.1687808399 ft/s |
| 0.5 kn | 0.8439041995 ft/s |
| 1 kn | 1.6878084 ft/s |
| 2 kn | 3.3756168 ft/s |
| 5 kn | 8.43904199 ft/s |
| 10 kn | 16.87808399 ft/s |
| 20 kn | 33.75616798 ft/s |
| 25 kn | 42.19520997 ft/s |
| 50 kn | 84.39041995 ft/s |
| 100 kn | 168.7808399 ft/s |
| 250 kn | 421.95209974 ft/s |
| 500 kn | 843.90419948 ft/s |
| 1000 kn | 1,687.808399 ft/s |