Speed Converter
Enter a speed and choose a starting unit to convert between mph, km/h, m/s, and knots.
Last updated: August 31, 2026
Frequently asked questions
How many km/h is 60 mph?
60 mph equals about 96.56 km/h. To convert mph to km/h, divide by 0.621371 (or multiply by about 1.60934).
What's the difference between knots and mph?
A knot is one nautical mile per hour, which is slightly longer than a statute mile - 1 knot ≈ 1.15 mph. Knots are standard in marine and aviation navigation; mph is standard for road speeds in the US.
What's the difference between speed over ground and airspeed?
This converter handles simple unit conversion (mph, km/h, knots, etc.) for a single speed value; it doesn't account for wind or current effects that separate 'speed over ground' from 'airspeed' or 'water speed' in aviation and marine contexts, which require additional variables beyond unit conversion.
How many mph is 260 km/h?
About 161.6 mph - multiply km/h by 0.621371. That's a very high speed, well above typical highway limits, in the range of a high-performance sports car near top speed.
How many meters per second is a mile per hour?
One mile per hour equals approximately 0.447 meters per second. Meters per second is the standard scientific unit for speed, while mph and km/h are more common in everyday and automotive contexts.