How to convert km/h to mph
Speed converts with the same factor as distance: 1 mph = 1.609344 km/h, so 1 km/h ≈ 0.6214 mph. To turn km/h into mph, divide by 1.609.
Formula: mph = km/h ÷ 1.609344
Example: 100 km/h ÷ 1.609 = 62.14 mph
km/h to mph table
| Km/h (km/h) | Mph (mph) |
|---|---|
| 5 | 3.1 |
| 10 | 6.2 |
| 20 | 12.4 |
| 30 | 18.6 |
| 40 | 24.9 |
| 50 | 31.1 |
| 60 | 37.3 |
| 70 | 43.5 |
| 80 | 49.7 |
| 90 | 55.9 |
| 100 | 62.1 |
| 110 | 68.4 |
| 120 | 74.6 |
| 130 | 80.8 |
| 150 | 93.2 |
| 200 | 124.3 |
| 250 | 155.3 |
| 300 | 186.4 |
Values are rounded to 1 decimal place.
Speeds worth knowing
- City speed limit: 50 km/h = 31 mph
- Highway: 100 km/h = 62 mph, 120 km/h = 75 mph, 130 km/h = 81 mph
- Walking: 5 km/h = 3.1 mph
- Fast train: 300 km/h = 186 mph
How to use it
- Type a number in the From box — the answer appears straight away
- Click Swap (⇄) to convert the other way, from mph to km/h
- Change the units or the category to convert anything else — length, weight, temperature, volume, speed and more
Frequently asked questions
How many mph is 100 km/h?
62.1 mph.
Is kph the same as km/h?
Yes — kph, kmh and km/h all mean kilometers per hour.
How do I convert km/h to mph quickly?
Multiply by 0.6: 80 km/h × 0.6 = 48 mph (exact: 49.7 mph).
Is my data sent anywhere?
No. The conversion runs in your browser, on your own device.
Related tools
- Unit Converter — every unit in one place
