Convert speed between miles per hour, kilometres per hour, knots, metres per second, and Mach. Instant results with common examples.
Multiply miles per hour by 1.60934. For example: 60 mph × 1.60934 = 96.56 km/h. Or use this speed converter and enter your mph value.
60 mph is approximately 96.56 km/h. Multiply 60 by 1.60934 to get the exact conversion.
100 km/h is approximately 62.14 mph. Divide kilometres per hour by 1.60934 to convert to miles per hour.
The speed of sound at sea level is approximately 767 mph or 1,235 km/h (340.29 m/s). It varies with temperature and altitude.
Divide kilometres per hour by 1.60934. For example: 120 km/h / 1.60934 = 74.56 mph.
One knot equals 1.15078 mph or 1.852 km/h. Knots are used in aviation and maritime navigation.
70 mph equals approximately 112.65 km/h. Multiply 70 by 1.60934.
Multiply metres per second by 3.6. For example: 10 m/s × 3.6 = 36 km/h.