Convert speed units between Miles per Hour (mph), Kilometers per Hour (km/h), and Knots.
If you're driving in a foreign country or following international sports, speed measurements can be confusing. Cars in the US display speed in Miles Per Hour (mph), while European cars use Kilometers Per Hour (km/h). Aviation and nautical contexts use Knots.
Our Speed Converter tool effortlessly translates any speed unit into all the others simultaneously. Type in a value, select your unit, and instantly view the conversion for mph, km/h, m/s, and knots.