Miles per Hour to Kilometers per Hour Converter
1 mph = 1.60934 km/h
Conversion formula
km/h = mph x 1.60934
To convert mph to km/h, multiply by 1.60934. This is the same factor as miles to km, since the hour unit is the same.
Miles per Hour to Kilometers per Hour Table
| Miles per Hour (mph) | Kilometers per Hour (km/h) |
|---|---|
| 5 | 8.04672 |
| 15 | 24.1402 |
| 25 | 40.2336 |
| 30 | 48.2803 |
| 55 | 88.5139 |
| 60 | 96.5606 |
| 65 | 104.607 |
| 70 | 112.654 |
| 75 | 120.701 |
| 100 | 160.934 |
1 mile per hour in every speed unit
| Meters per Second | 0.44704 m/s |
| Kilometers per Hour | 1.60934 km/h |
| Knots | 0.868976 kn |
| Feet per Second | 1.46667 ft/s |
| Mach | 0.00130332 Ma |
| Speed of Light | 1.49116e-9 c |
About Miles per Hour to Kilometers per Hour
Converting mph to km/h is necessary when American drivers rent cars abroad, when comparing vehicle specs across markets, and for understanding international weather reports about wind speeds.
US speed limits in km/h: a school zone at 15 mph is 24.1 km/h. A residential street at 25 mph equals 40.2 km/h. A typical urban limit of 35 mph is 56.3 km/h. Highway speeds of 55-75 mph range from 88.5 to 120.7 km/h.
When renting a car in Europe, the speedometer may only show km/h. Knowing that 65 mph (the American highway cruise) equals about 105 km/h helps avoid speeding tickets. On the Autobahn, your 80 mph cruise is only 128.7 km/h - quite moderate by German standards.
In sports, pitch speeds in baseball convert dramatically. A 100 mph fastball is 160.9 km/h. A 90 mph slider is 144.8 km/h. The fastest recorded pitch, 105.8 mph, is 170.3 km/h.
Tennis serves also use this conversion. The fastest serve on record is 163.7 mph (263.4 km/h). A typical professional serve of 120 mph is 193.1 km/h.
For quick conversion, multiply mph by 1.6. So 60 mph x 1.6 = 96 km/h (actual: 96.56 km/h).
Frequently Asked Questions
How fast is 60 mph in km/h?
60 mph equals 96.56 km/h. This is a common US highway speed and close to the 100 km/h speed limit in many countries.
What is 70 mph in km/h?
70 mph equals 112.65 km/h. This is the maximum highway speed limit in many US states.
How do I convert mph to km/h quickly?
Multiply by 1.6 for a quick estimate. So 50 mph x 1.6 = 80 km/h (actual: 80.47 km/h).
What is the fastest speed ever recorded for a car?
The ThrustSSC set the land speed record at 763 mph (1,228 km/h) in 1997, breaking the sound barrier. The fastest production car achieved 304.77 mph (490.5 km/h).