Km/h to Mach

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Km/h kph

Mach mach

1 kph = — mach

Quick reference

Km/h (kph)	Mach (mach)

Formula

Mach = km/h × 0.00080984775

Multiply the km/h value by 0.0008098477486232589 to get mach. To reverse — divide mach by 0.0008098477486232589 to get km/h.

About this conversion

Kilometers per hour (km/h) is the standard speed unit used in most countries for road speeds. Learn more →

Mach (Ma) expresses speed as a ratio to the speed of sound (~343 m/s at sea level), used in aviation and aerospace. Learn more →