Conversion Formula
To convert knots to kilometers per hour, multiply the knot value by 1.852. One knot equals exactly one nautical mile per hour.
Step-by-Step Conversion Guide
Follow these steps to convert knots to kilometers per hour manually:
Start with your value in knots
Example: You want to convert 10 kn
Apply the conversion formula
Use the formula: km/h = kn × 1.852
Calculate the result
10 kn = 18.52 km/h
Verify your answer
Use our calculator above to double-check your manual calculation.
Quick Mental Math Tip
To convert knots to kilometers per hour, multiply the knot value by 1.852. One knot equals exactly one nautical mile per hour.
Common Conversions
| Knots (kn) | Kilometers per Hour (km/h) | Kilometers per Hour → Knots |
|---|---|---|
| 1 kn | 1.852 | 1 km/h = 0.54 kn |
| 5 kn | 9.26 | 5 km/h = 2.6998 kn |
| 10 kn | 18.52 | 10 km/h = 5.3996 kn |
| 15 | 27.78 | 15 km/h = 8.0994 kn |
| 20 kn | 37.04 | 20 km/h = 10.7991 kn |
| 30 kn | 55.56 | 30 km/h = 16.1987 kn |
| 40 | 74.08 | 40 km/h = 21.5983 kn |
| 50 kn | 92.6 | 50 km/h = 26.9978 kn |
| 100 | 185.2 | 100 km/h = 53.9957 kn |
| 200 | 370.4 | 200 km/h = 107.9914 kn |
Did You Know?
The speed of light is exactly 299,792,458 meters per second — one of the few physical constants defined to be exact by international agreement.
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Last verified: April 2026. All conversion factors are based on internationally defined standards.