Last updated: 3 October 2026
Reviewed by Jordan Morley, FA Level 2 Football Coach
Convert mph → km/h
About this conversion
One mph equals 1.60934 km/h. The standard speed conversion for treadmills, cycling computers and car speedometers between imperial and metric.
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Why this conversion matters
Vehicle speed limits, wind readings and some race-timing displays use mph in the UK and US while the rest of the world uses km/h — sports contexts where this comes up include cycling speed comparisons, motorsport commentary, and converting a US-sourced training pace chart.
FAQ
Is a 60 mph speed limit the same everywhere?
60 mph is specific to countries using the imperial system (UK, US); the equivalent in km/h-using countries would be signed as roughly 97 km/h, though actual speed limits differ by country and road type, not just unit conversion.
What's a fast descending speed for a cyclist in km/h vs mph?
Elite cyclists can exceed 60-70 mph (around 97-113 km/h) on steep mountain descents in races like the Tour de France, though recreational riders rarely approach these speeds safely.
Why does the UK use mph for roads but km for some sports?
The UK retains mph for road speed limits and vehicle displays by long-standing convention, while many UK sports (athletics, cycling, parkrun) have adopted the internationally standard metric system.