Convert mph to km/h, both ways.
Type a speed in miles per hour and read the exact kilometers per hour, or type km/h to convert back. The result updates live, with meters per second and knots for context and a one-click copy.
Your speed
Edit either box. The formula is km/h = mph times 1.60934, and mph = km/h divided by 1.60934.
96.5604 km/hWhat this means
Common mph to km/h values
| Miles per hour | km/h | km/h (rounded) | Where you see it |
|---|
How the conversion works
Conversion Factor
1 mph equals 1.609 km/h. To convert, multiply mph by 1.609. The factor is identical to converting miles to kilometers because the time component cancels.
When You Need This
US drivers traveling internationally need to translate familiar speeds to km/h. European autobahns post limits in km/h; US drivers want to compare to home highway speeds.
Reference Values
30 mph = 48.3 km/h. 55 mph = 88.5 km/h (US highway minimum). 65 mph = 104.6 km/h. 70 mph = 112.7 km/h. 80 mph = 128.7 km/h.
Common questions
60 mph is how many km/h?
60 mph = 96.6 km/h.
US highway speed in km/h?
65 mph = 104.6 km/h. 70 mph (common US highway max) = 112.7 km/h.
German autobahn typical speed in mph?
130 km/h = 80.8 mph. The unlimited sections see speeds 160-200 km/h = 100-125 mph.
All conversion runs in your browser. Nothing is uploaded. 1 mile is exactly 1.609344 km by international definition, so these speed results are precise, not approximate.