Speed Converter
Convert different units of speed instantly.
Miles per Hour-
Kilometers per Hour-
Meters per Second-
Knots-
Feet per Second-
Mach-
Speed Units Explained
Speed Conversion is essential for travel, aviation, and science. Different regions and industries use different standards.
Common Units
- MPH (Miles per hour): Standard in the US and UK for road traffic.
- Km/h (Kilometers per hour): Standard in most of the world.
- Knots (kn): Used in aviation and maritime. 1 Knot = 1 Nautical Mile per hour.
- Mach: Speed relative to the speed of sound. Mach 1 is the speed of sound (~767 mph or 1235 km/h at sea level).
Conversion Factors
- 1 mph = 1.60934 km/h
- 1 knot = 1.15078 mph
- 1 m/s = 3.6 km/h
Frequently Asked Questions
How fast is Mach 1?
At standard sea level conditions, Mach 1 is approximately 767 mph (1235 km/h) or 343 m/s.