Convert Kilometre per hour to Mach (sea level, 20 °C)
1 Kilometre per hour = 8.0985e-4 Mach (sea level, 20 °C) · 1 Mach (sea level, 20 °C) = 1,235 Kilometre per hour
Conversion formula
1 km/h = 0.0008098477486 Mach → km/h = 8.0985e-4 Mach
The reverse direction: 1 Mach = 1234.8 km/h.
Quick reference
| km/h | Mach |
|---|---|
| 1 km/h | 8.0985e-4 Mach |
| 2 km/h | 0.0016197 Mach |
| 3 km/h | 0.00242954 Mach |
| 5 km/h | 0.00404924 Mach |
| 10 km/h | 0.00809848 Mach |
| 20 km/h | 0.016197 Mach |
| 25 km/h | 0.0202462 Mach |
| 50 km/h | 0.0404924 Mach |
| 100 km/h | 0.0809848 Mach |
| 250 km/h | 0.202462 Mach |
| 500 km/h | 0.404924 Mach |
| 1,000 km/h | 0.809848 Mach |
About these units
The Kilometre per hour (km/h) and the Mach (sea level, 20 °C) (Mach) are both units of speed. Under the standard definition, one km/h equals exactly 8.0985e-4 Mach. This category's SI base unit is the metre per second.