Mph to Kph Converter
Convert miles per hour to kilometres per hour. Free mph to kph speed converter with common speed limits.
Formula
kph = mph × 1.60934
Common Conversions
How to Convert MPH to KPH
1 mph = 1.60934 km/h. Multiply mph by 1.60934 to get km/h. So 60 mph × 1.60934 = 96.56 km/h. Quick mental: multiply by 1.6, or by 8/5. 70 mph × 8/5 = 112 km/h, accurate to within 0.5%.
Most useful for driving across borders. UK and US use mph for road speed limits. Most of the rest of the world (including all of Europe except UK) uses km/h. A 70 mph US/UK motorway speed = 113 km/h. A 30 mph residential = 48 km/h. Useful when adapting US road trip plans for European travel.
Common MPH to KPH Conversions
| MPH | KPH |
|---|---|
| 20 mph | 32.19 km/h |
| 30 mph | 48.28 km/h |
| 40 mph | 64.37 km/h |
| 50 mph | 80.47 km/h |
| 60 mph | 96.56 km/h |
| 70 mph | 112.65 km/h |
| 80 mph | 128.75 km/h |
| 100 mph | 160.93 km/h |
Frequently Asked Questions
What's the German Autobahn speed?
Most stretches have no posted limit but the recommended (advisory) speed is 130 km/h = 81 mph. Many drivers exceed this. UK motorway top legal speed is 70 mph = 113 km/h. The Autobahn experience is generally faster than UK motorways.
How do speed cameras handle the conversion?
Speed cameras measure in the local unit (mph in UK/US, km/h elsewhere). The reading is the local unit; conversion is just for travelers' understanding. UK police will quote you 32 mph; converting that to 51 km/h for your insurance company doesn't change the offence.
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