Convert Kilometers per hour (km/h) to Knot (kn)
Category: Speed
1 kmh = 0.539957 knot
Precision: 6 decimals; very small non-zero results use significant digits.
How to convert kilometers per hour (km/h) to knot (kn)
Speed combines distance and time. Science favors m/s, drivers see km/h or mph, and navigation uses knots (nautical miles per hour). Context determines the most convenient representation and rounding.
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Quick conversion table
Handy values for Kilometers per hour (km/h) to Knot (kn). Click a value to calculate that result.
| Kilometers per hour (km/h) | Knot (kn) |
|---|---|
| 0.539957 | |
| 0.269979 | |
| 1.349893 | |
| 5.399573 |
Conversion formula
Use the following formula:
Knot (kn) ≈ Kilometers per hour (km/h) × 0.539957269941
Convert speed from Kilometers per hour (km/h) to Knot (kn) using a fixed unit ratio. Round only the final result.
Common mistakes
- Mixing mph with knots in navigation; 1 kn = 1 nmi/h.
Unit facts
- Kilometers per hour (km/h): Kilometers per hour is the common road-speed unit in most of the world.
- Knot (kn): A knot equals one nautical mile per hour (1.852 km/h); used in aviation and maritime navigation.
About Kilometers per hour (km/h)
Kilometers per hour (km/h)
Road and vehicle speed standard in most of the world. Convert from m/s by multiplying by 3.6.
History: Adopted with metric traffic systems and signage during 20th-century metrication.
About Knot (kn)
Knot (kn)
Equals 1 nautical mile per hour. Standard in maritime and aviation because it ties speed to Earth geometry.
History: Name comes from counting knots in a log line; standardized with the nautical mile.