21 Feet per Second to Knots
Convert 21 feet per second (ft/s) to knots (kn) with formulas, examples, and conversion tables.
ft/s
kn
21 feet per second (ft/s) = 12.4421705764 knots (kn)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 knot = 1.68780839895 feet per second
2Divide the value by the conversion factor:
21 ÷ 1.68780839895 = 12.4421705764
3Result:
21 feet per second (ft/s) = 12.4421705764 knots (kn)
Feet per Second to Knots Conversion Table
| Feet per Second | Knots |
|---|---|
| 1 ft/s | 0.592484 kn |
| 2 ft/s | 1.18497 kn |
| 3 ft/s | 1.77745 kn |
| 4 ft/s | 2.36994 kn |
| 5 ft/s | 2.96242 kn |
| 10 ft/s | 5.92484 kn |
| 20 ft/s | 11.8497 kn |
| 21 ft/s | 12.4422 kn |
| 50 ft/s | 29.6242 kn |
| 100 ft/s | 59.2484 kn |
21 Feet per Second in Other Units
| Unit | 21 ft/s = |
|---|---|
| ft/s to m/s | 6.4008 m/s |
| ft/s to km/h | 23.0428615657 km/h |
| Feet per Second to Centimeters per Second | 640.08 cm/s |
| ft/s to mph | 14.3181818182 mph |
| Feet per Second to Inches per Second | 252 in/s |
| Feet per Second to Knots | 12.4421705764 kn |
| Feet per Second to Mach | 0.018809838667 Mach |
| Feet per Second to Speed of Light | 2.13507706054e-8 c |
| Feet per Second to Kilometers per Second | 0.0064008 km/s |