Knot (kn)
The knot (kn) is one nautical mile per hour.
- Origin
- A marine and aviation unit based on the nautical mile of 1,852 m.
- Where it is used
- Used in marine works, aviation and meteorological wind data.
- Relation to SI
- 1 kn = 0.514444 m/s.
Knot to Kilometers Per Hour Converter
Instant, two-way conversion across common engineering units.
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1 kn = 1.852 km/h(Knot → Kilometres per hour)
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Converting knots to kilometers per hour
To convert knots to kilometers per hour, multiply the value by 1.852. Speed conversions appear in wind loading, air velocity in ducts and transport analysis, where codes mix metric and imperial units.
Kilometers Per Hour (km/h)
Kilometers per hour (km/h) is the everyday metric speed unit.
- Origin
- A practical multiple of the SI meter per second.
- Where it is used
- Used for vehicle speed, transport planning and weather reporting.
- Relation to SI
- 1 km/h = 0.2778 m/s, so 3.6 km/h equals 1 m/s.
Frequently asked questions
How many kilometers per hour are in one knot?
1 kn equals 1.852 km/h.
How do I convert knots to kilometers per hour?
Multiply the value by 1.852. For example, 10 kn equals 18.52 km/h.
How do I convert back from kilometers per hour to knots?
1 km/h equals 0.5399568 kn. The converter above works in both directions, so you can type into either field.
Which speed unit do wind load codes use?
Eurocode and most metric standards state basic wind speed in meters per second, while US standards such as ASCE 7 use miles per hour. Check the averaging period as well as the unit.
What is a knot?
One knot is one nautical mile per hour, about 0.514 m/s. It is standard in marine works, aviation and meteorological data.
Is this speed converter free to use?
Yes. Every unit conversion runs in your browser, needs no account and is free for professional use.