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 Miles Per Hour Converter
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1 kn = 1.1507794 mph(Knot → Miles per hour)
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Converting knots to miles per hour
To convert knots to miles per hour, multiply the value by 1.1507794. Speed conversions appear in wind loading, air velocity in ducts and transport analysis, where codes mix metric and imperial units.
Miles Per Hour (mph)
Miles per hour (mph) is the road and wind speed unit in the US and UK.
- Origin
- Derived from the statute mile of 1,609.344 m.
- Where it is used
- Used for design wind speeds in US codes and for traffic and transport data.
- Relation to SI
- 1 mph = 0.44704 m/s exactly.
Frequently asked questions
How many miles per hour are in one knot?
1 kn equals 1.1507794 mph.
How do I convert knots to miles per hour?
Multiply the value by 1.1507794. For example, 10 kn equals 11.507794 mph.
How do I convert back from miles per hour to knots?
1 mph equals 0.86897624 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.