Speed Converter
km/h, mph, knots and m/s.
1 foot per second = 0.5924838013 kn. Enter any value to convert feet per second (ft/s) to knots (kn), or use the table below for common values.
kn = ft/s × 0.5924838013
Example: 10 ft/s = 5.924838013 kn. To convert the other way, use ft/s = kn × 1.687809857.
Quick mental estimate: multiply by about 0.59.
| Feet per Second (ft/s) | Knots (kn) |
|---|---|
| 1 ft/s | 0.5924838013 kn |
| 5 ft/s | 2.962419006 kn |
| 10 ft/s | 5.924838013 kn |
| 20 ft/s | 11.84967603 kn |
| 30 ft/s | 17.77451404 kn |
| 40 ft/s | 23.69935205 kn |
| 50 ft/s | 29.62419006 kn |
| 60 ft/s | 35.54902808 kn |
| 70 ft/s | 41.47386609 kn |
| 80 ft/s | 47.3987041 kn |
| 90 ft/s | 53.32354212 kn |
| 100 ft/s | 59.24838013 kn |
| 120 ft/s | 71.09805616 kn |
| 150 ft/s | 88.87257019 kn |
| 200 ft/s | 118.4967603 kn |
| 300 ft/s | 177.7451404 kn |
The foot per second is used in US engineering, ballistics and fluid flow.
The knot is one nautical mile per hour (exactly 1.852 km/h), used in aviation, sailing and marine weather forecasts.
Use the formula kn = ft/s × 0.5924838013. For example, 10 ft/s = 5.924838013 kn.
1 ft/s = 0.5924838013 kn.
Use ft/s = kn × 1.687809857. 1 kn = 1.687809857 ft/s.