Speed Converter: km/h, mph, m/s and Knots
Convert vehicle, wind and running speeds between metric, imperial and nautical units.
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Kilometres per hour to Miles per hour
62.13711922mph
100 km/h = 62.13711922 mph
1 km/h = 0.6213711922 mph · 1 mph = 1.609344 km/h
All units
| Unit | Value | Unit |
|---|---|---|
| Metric | ||
| 100 | km/h | |
| 27.77777778 | m/s | |
| 2,777.777778 | cm/s | |
| Imperial | ||
| 62.13711922 | mph | |
| 91.13444153 | ft/s | |
| Other | ||
| 53.99568035 | kn | |
1 knot = 1 nautical mile per hour = 1.852 km/h. Speed limits in India are in km/h.
How to use
- Type the value in the From unit.
- Pick the unit to convert to (it starts on mph). Search by name or symbol.
- Read the result, or tap any row in the full table to switch the target unit.
Good to know
1 km/h = 1,000 m ÷ 3,600 s = 0.2778 m/s, so m/s = km/h ÷ 3.6. 1 mph = 1.609344 km/h and 1 knot = 1.852 km/h.
Indian speed limits and speedometers use km/h. Wind speeds in IMD cyclone bulletins are often given in knots and km/h; aircraft and ships use knots.
Running pace is time per distance (min/km), which is the inverse of speed: 12 km/h = 5 min per km.
Questions
What is 100 km/h in mph?
62.14 mph.
How do I convert km/h to m/s?
Divide by 3.6. 72 km/h = 20 m/s.
How fast is a knot?
1.852 km/h (1.15 mph).
What is 60 mph in km/h?
96.56 km/h.
Is anything I type sent to a server?
No. The conversion runs on your device and nothing is stored.