Unit Converter
Convert length, mass, temperature and volume.
Speed Converter
Convert km/h, mph, m/s and knots instantly.
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ℹ️ This tool is for informational purposes only. It does not replace professional advice.
The speed converter translates between the most common units: kilometers per hour, miles per hour, meters per second, knots (for navigation and aviation), feet per second and Mach. Enter the value and units and get the equivalent in real time. Useful for cars, sports, flight bags or simply comparing figures from different countries. Use it as many times as you need: it is completely free, requires no sign-up and works directly in your browser.
Frequently asked questions
¿Cómo convertir km/h a mph?
Divide entre 1,609: 100 km/h equivalen a 62,1 mph. A la inversa, multiplica por 1,609.
¿Qué es un nudo?
Es una milla náutica por hora (1.852 km). Aunque se mide en el mar y el aire, un nudo equivale a unos 1,852 km/h.
¿Qué relación hay entre m/s y km/h?
1 m/s equivale exactamente a 3,6 km/h. 10 m/s son 36 km/h, un buen punto de partida mental para conversiones rápidas.
How do I convert km/h to mph?
Divide by 1.609: 100 km/h equals 62.1 mph. To go the other way, multiply by 1.609.
What is a knot?
It is a nautical mile per hour (1.852 km). Although used at sea and in the air, one knot equals about 1.852 km/h.
What is the relation between m/s and km/h?
1 m/s equals exactly 3.6 km/h. 10 m/s is 36 km/h, a good mental starting point for quick conversions.