This kmh to mph converter turns kilometers per hour into miles per hour as you type. Drivers renting a car abroad, cyclists reading a European bike computer, and anyone comparing a car’s top speed across spec sheets run into this one. It runs in your browser and spends no credits.
How many mph is 1 km/h
One kilometer per hour is about 0.6214 mph. Because a mile is exactly 1.609344 km, a speed in km/h divided by 1.609344 gives the same speed in mph, so 100 km/h is 62.14 mph.
Km/h to mph formula
Divide the km/h by 1.609344:
mph = km/h ÷ 1.609344
A handy mental version is to multiply by 5/8: 120 km/h × 5/8 = 75 mph, against an exact 74.56 mph. Multiplying by 0.6 is simpler and runs a little lower, 72 mph for the same speed.
Speed limits in km/h and mph
| Km/h | Mph |
|---|---|
| 10 km/h | 6.21 mph |
| 20 km/h | 12.43 mph |
| 30 km/h | 18.64 mph |
| 40 km/h | 24.85 mph |
| 50 km/h | 31.07 mph |
| 60 km/h | 37.28 mph |
| 70 km/h | 43.50 mph |
| 80 km/h | 49.71 mph |
| 90 km/h | 55.92 mph |
| 100 km/h | 62.14 mph |
| 110 km/h | 68.35 mph |
| 120 km/h | 74.56 mph |
| 130 km/h | 80.78 mph |
| 200 km/h | 124.27 mph |
| 300 km/h | 186.41 mph |
Worked example: driving a rental car in Europe
Town limits of 50 km/h are common across Europe, and that is 31.07 mph, close to the 30 mph a US or UK driver knows from residential streets. On a motorway posted at 130 km/h, you would be doing 80.78 mph. If the speedometer shows only km/h, keep the conversion in mind as you pass each sign, and check the local rules where you drive.
Km/h, m/s and knots
The same page converts to meters per second and knots. 100 km/h is 27.78 m/s, a figure that shows up in physics problems and braking distance charts. Knots are used at sea and in aviation; pick knots in the unit list when a wind or boat speed comes in that unit.
FAQ
Is 100 km/h the same as 60 mph?
Close, but not quite. 100 km/h is 62.14 mph, and 60 mph is 96.56 km/h.
How do I convert mph to km/h?
Press swap or type in the Miles per hour box. By hand, multiply mph by 1.609344.
What does it cost?
It comes with the Nexin library: Nexin Lite or Nexin Pro opens it, and it spends no credits.
