Knots Converter
Convert knots to mph, km/h or m/s instantly for boat speed, wind speed and aviation with this free knots converter that runs right in your browser.
100% FreeRuns in your browserBasic
Enter Values
Enter your values and press Calculate to see results.
How to use this calculator
- Enter a speed in knots.
- Read the equivalents.
How it works
1 knot = 1.852 km/h = 1.15078 mph = 0.514444 m/s (one nautical mile per hour).
Worked example
10 knots. = 18.52 km/h.
Common mistakes
- Confusing knots with 'knots per hour' — a knot is already a speed.
- Mixing nautical and statute miles.
Frequently asked questions
What is a knot?
One nautical mile per hour — a nautical mile is 1.852 km, based on one minute of latitude.
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Cite this tool
Zerdly. (2026). Knots Converter. Retrieved from https://www.zerdly.com/tools/knots-converter/
Tip: Enter any known values to calculate the remaining results.
Designed to run locally in your browser. Tool inputs are not intentionally stored by Zerdly unless stated otherwise.