Free tool
Speed Converter
Type a speed in any box and the others update instantly — mph, km/h, knots, meters per second, and feet per second.
MPH to km/h chart
| 10 mph | 16.1 km/h |
| 15 mph | 24.1 km/h |
| 20 mph | 32.2 km/h |
| 25 mph | 40.2 km/h |
| 30 mph | 48.3 km/h |
| 35 mph | 56.3 km/h |
| 40 mph | 64.4 km/h |
| 45 mph | 72.4 km/h |
| 50 mph | 80.5 km/h |
| 55 mph | 88.5 km/h |
| 60 mph | 96.6 km/h |
| 65 mph | 104.6 km/h |
| 70 mph | 112.7 km/h |
| 75 mph | 120.7 km/h |
| 80 mph | 128.7 km/h |
| 85 mph | 136.8 km/h |
| 90 mph | 144.8 km/h |
| 100 mph | 160.9 km/h |
| 120 mph | 193.1 km/h |
| 150 mph | 241.4 km/h |
km/h to MPH chart
| 10 km/h | 6.2 mph |
| 20 km/h | 12.4 mph |
| 30 km/h | 18.6 mph |
| 40 km/h | 24.9 mph |
| 50 km/h | 31.1 mph |
| 60 km/h | 37.3 mph |
| 70 km/h | 43.5 mph |
| 80 km/h | 49.7 mph |
| 90 km/h | 55.9 mph |
| 100 km/h | 62.1 mph |
| 110 km/h | 68.4 mph |
| 120 km/h | 74.6 mph |
| 130 km/h | 80.8 mph |
| 140 km/h | 87.0 mph |
| 160 km/h | 99.4 mph |
| 200 km/h | 124.3 mph |
Speed conversion formulas
- km/h = mph × 1.609344
- mph = km/h × 0.621371
- knots = km/h ÷ 1.852
- m/s = km/h ÷ 3.6
- ft/s = mph × 1.46667
Want to know your actual speed right now? Try the free online GPS speedometer.
Frequently asked questions
How do I convert mph to km/h?+
Multiply the speed in miles per hour by 1.609. For example, 60 mph × 1.609 = 96.6 km/h. A quick mental shortcut is to multiply by 1.6.
How do I convert km/h to mph?+
Divide the speed in kilometers per hour by 1.609 (or multiply by 0.621). For example, 100 km/h ÷ 1.609 = 62.1 mph.
What is 100 km/h in mph?+
100 km/h is 62.1 mph. That's why the 0–100 km/h acceleration time used in Europe is very close to the 0–60 mph time used in the US (60 mph is 96.6 km/h).
What is a knot?+
A knot is one nautical mile per hour. A nautical mile is exactly 1,852 meters, so 1 knot = 1.852 km/h = 1.151 mph. Knots are used at sea and in aviation.