Speed Converter
Convert km/h, mph, m/s, knots and Mach.
To
1 km/h = 0.6213711922 mph
Mach is measured at sea level in the standard atmosphere (340.29 m/s).
Popular speed conversions
Speed unit reference
Every supported unit expressed in meters per second (m/s).
| Unit | Symbol | 1 unit in m/s |
|---|---|---|
| Meters per Second | m/s | 1 |
| Kilometers per Hour | km/h | 0.277777778 |
| Miles per Hour | mph | 0.44704 |
| Feet per Second | ft/s | 0.3048 |
| Knots | kn | 0.514444444 |
| Mach | Ma | 340.29 |
Frequently asked questions
- Which speed units can I convert?
- This converter supports 6 units including meters per second, kilometers per hour, miles per hour, feet per second, knots, mach.
- How accurate is the speed converter?
- Conversions use internationally defined factors and are calculated at full double precision, then rounded for readability.
- Do I need an account to use VAConverter?
- No. There is no sign-up, no tracking of your inputs, and every conversion runs in your browser.
- Anything I should watch out for?
- Mach is measured at sea level in the standard atmosphere (340.29 m/s).