Speed Converter
Convert km/h, mph, metres per second, feet per second and knots.
Results
Result
62.1371
mph
100 km/h equals 62.1371 mph
What this tool does
Speed limits, weather reports and machine specifications all use different units, and the mental shortcuts are unreliable: dividing mph by 1.6 is close but not exact. The factors here are built from the exact definitions, so 100 km/h is 62.137 mph rather than a rounded 62. Knots matter at sea and in aviation: one knot is one nautical mile per hour, exactly 1852 metres per hour.
Worked example
100 km/h 62.1371 mph
Conversion table
| Unit | Result |
|---|---|
| Metre per second m/s | 0.277778 |
| Mile per hour mph | 0.621371 |
| Foot per second ft/s | 0.911344 |
| Knot kn | 0.539957 |
| Metre per minute m/min | 16.6667 |
| Millimetre per second mm/s | 277.778 |
Convert a whole list
One value per line. The units above are used for every line.
Limitations
- The calculation runs at full precision and only the display is rounded. If you copy an intermediate value and retype it, small differences can appear.