Speed Converter
Convert common speed units accurately with a simple global tool.
Speed converter
Convert common speed units for travel, driving, sports, science and engineering.
How it works
Enter your values, choose the relevant units or options, and review the calculated result. For financial and market tools, displayed figures are calculations and can differ from provider quotes, fees, spreads, taxes or local rules.
Frequently asked questions
How do I convert km/h to mph?
Multiply kilometers per hour by approximately 0.621371 to get miles per hour.
What is m/s used for?
Meters per second is a common SI unit for speed in scientific and technical contexts.
Can I convert mph to km/h?
Yes. One mile per hour equals approximately 1.60934 kilometers per hour.