Use Speed Converter - free
Frequently asked questions
What is a knot?
A knot is one nautical mile per hour, commonly used in aviation and maritime navigation - it is slightly larger than a standard mph.
Which unit is most common for weather reports?
This varies by country: mph in the US, km/h in most of the rest of the world, and knots in aviation and marine contexts.
How precise are the conversions?
Conversions use standard, widely accepted conversion factors, shown to three decimal places for practical accuracy.