KM/H to MPH Converter
Convert kilometers per hour to miles per hour (km/h to mph) instantly, with the formula and a conversion chart.
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How to convert kilometers per hour to miles per hour
1 kilometer per hour = 0.621371 miles per hour. To convert kilometers per hour to miles per hour, multiply by 0.621371.
Example: 100 km/h = 62.137 mph.
Quick estimate: Multiply by 0.6: 100 km/h ≈ 60 mph (exactly 62.1).
Speed limits and car speedometers outside the US and UK, plus cycling and running paces.
KM/H to MPH conversion chart
| Kilometers per hour | Miles per hour |
|---|---|
| 10 km/h | 6.214 mph |
| 20 km/h | 12.427 mph |
| 30 km/h | 18.641 mph |
| 50 km/h | 31.069 mph |
| 60 km/h | 37.282 mph |
| 80 km/h | 49.71 mph |
| 90 km/h | 55.923 mph |
| 100 km/h | 62.137 mph |
| 110 km/h | 68.351 mph |
| 120 km/h | 74.565 mph |
| 130 km/h | 80.778 mph |
| 200 km/h | 124.27 mph |
How to use this tool
- 1Type the number of kilometers per hour in the Value box.
- 2The result in miles per hour appears instantly.
- 3Use the ⇄ button to convert miles per hour to kilometers per hour instead, or pick any other unit.
Features
- Exact km/h to mph conversion using the standard definition.
- Results update as you type, rounded to 6 decimal places.
- Switch to any other length, weight, temperature, volume or speed unit.
Privacy
Everything is calculated in your browser. Nothing is sent to a server.
Frequently asked questions
How fast is 100 km/h in mph?
62.14 mph.
What is 130 km/h in mph?
80.78 mph — the motorway limit in several European countries.
How do I convert miles per hour back to kilometers per hour?
Divide by 0.621371 (or multiply by 1.60934), or use the swap button in the converter above or the MPH to KM/H converter.
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