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Speed
Feet per second to Knots
Convert feet per second (ft/s) to knots (kn). Type a value below to see the result update instantly. Reference table and formula included.
Calculator
1 ft/s = 0.592484 kn
Feet per second to Knots Conversion Table
Common values, ready to copy:
| feet per second | knots |
|---|---|
| 1 ft/s | 0.592484 kn |
| 2 ft/s | 1.185 kn |
| 5 ft/s | 2.9624 kn |
| 10 ft/s | 5.9248 kn |
| 25 ft/s | 14.8121 kn |
| 50 ft/s | 29.6242 kn |
| 100 ft/s | 59.2484 kn |
| 1,000 ft/s | 592.48 kn |
Formula
knots = feet per second × 5.92484313e-1
Speed is distance per unit time. 1 m/s = 3.6 km/h. 1 mph = 1.609344 km/h. 1 knot = 1.852 km/h (one nautical mile per hour).
About Feet per second and Knots
Feet per second (ft/s): Imperial-system speed unit, occasionally used in US engineering and scientific contexts. Common uses: Ballistics (bullet velocities), some sports analytics (US football, baseball pitch tracking), and certain physics calculations in US-derived sources.
Knots (kn): One nautical mile per hour; a nautical mile is 1,852 m, based on one minute of arc along a meridian (so the unit is tied to Earth's geometry). Common uses: Marine navigation (ship speeds), aviation (aircraft speeds), and meteorology (wind speeds in weather reports for sailing and flying).
How the conversion works
Speed is distance per unit time. 1 m/s = 3.6 km/h. 1 mph = 1.609344 km/h. 1 knot = 1.852 km/h (one nautical mile per hour).
The exact relationship is knots = feet per second × 5.92484313e-1, which the calculator at the top of this page applies in both directions. Type into either field and the other updates immediately.
When this conversion matters
Converting between feet per second and knots comes up wherever speed measurements move between systems — from one country's conventions to another's, from a scientific reference to a practical specification, or from one industry's working unit to another's. The calculator and reference table above cover the everyday range; for unusual values you can type any number into either field.