Convert & Encode
Speed Converter
Convert speed between km/h, mph, m/s, knots, and ft/s.
Convert & Encode
Convert between speed units
This tool converts a speed between the units used in driving, aviation, sailing, sport and science: kilometres per hour, miles per hour, metres per second, knots and feet per second. It is handy for reading a foreign speed limit, a weather report or a physics problem.
How to convert speed
Enter a value and its unit, choose the unit to convert to, and the result updates instantly.
Frequently asked questions
What is a knot?
One nautical mile per hour, used in aviation and at sea. One knot is about 1.852 kilometres per hour.