21 Knots to Kilometers per Second
Convert 21 knots (kn) to kilometers per second (km/s) with formulas, examples, and conversion tables.
kn
km/s
21 kn = 0.010803 km/s
Full precision:0.010803 km/s
Step-by-Step Solution
To convert 21 knots to kilometers per second, we divide by 1943.85 because one kilometer per second equals exactly 1943.85 knots.
1 kilometer per second = 1943.85 knots
Since there are 1943.85 knots in every kilometer per second, we divide our value by this factor:
21 ÷ 1943.85 = 0.010803 kilometers per second
So 21 knots = 0.010803 kilometers per second.
Quick check: 0.010803 × 1943.85 = 21 knots
Knots to Kilometers per Second Conversion Table
| Knots | Kilometers per Second |
|---|---|
| 1 kn | 0.000514 km/s |
| 2 kn | 0.001029 km/s |
| 3 kn | 0.001543 km/s |
| 4 kn | 0.002058 km/s |
| 5 kn | 0.002572 km/s |
| 10 kn | 0.005144 km/s |
| 20 kn | 0.010289 km/s |
| 21 kn | 0.010803 km/s |
| 50 kn | 0.025722 km/s |
| 100 kn | 0.051444 km/s |
21 Knots in Other Units
| Unit | 21 kn = |
|---|---|
| Knots to m/s | 10.8033 m/s |
| Knots to km/h | 38.8919 km/h |
| Knots to Centimeters per Second | 1080.33 cm/s |
| Knots to mph | 24.1663 mph |
| Knots to Feet per Second | 35.444 ft/s |
| Knots to Inches per Second | 425.328 in/s |
| Knots to Mach | 0.031747 Mach |
| Knots to Speed of Light | 3.6036e-8 c |
| Knots to Kilometers per Second | 0.010803 km/s |