Mach is a speed measurement based on the speed of sound. Since sound travels at different speeds in different conditions, the calculations here are given for 20°C in dry air at sea level. Mach is typically used in aviation and space exploration.
Mach to Kilometers per hour
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Note: For a pure decimal result please select 'decimal' from the options above the result.Show formula Show working Show result in exponential format
This is a measurement of speed typically used in countries using the metric system for transport. Road speed limits are given in kilometers per hour which is abbreviated as kph or km/h.