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MPH to KPH Speed Converter
Convert miles per hour (mph) to kilometres per hour (kph) and back. UK roads use mph; European roads use kph. One mph equals 1.60934 kph.
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Formula: Miles per hour (mph) → Kilometres per hour (kph): Multiply mph by 1.60934
🇬🇧 British Context
Britain is one of the last countries using miles per hour for road speeds. UK speed limits are 20mph, 30mph, 60mph and 70mph — essential to know in km/h when driving in Europe.
Britain is one of the last countries using miles per hour for road speeds. UK speed limits are 20mph, 30mph, 60mph and 70mph — essential to know in km/h when driving in Europe.
UK Speed Limits in MPH and KPH
Frequently Asked Questions
MPH to KPH Speed Converter — common questions answered
How do I convert mph to kph?
Multiply mph by 1.60934 to get kph. For example, 70 mph × 1.60934 = 112.65 kph (the UK motorway limit).
What is 70 mph in kph?
70 mph is equal to 112.65 kph. This is the UK's national motorway speed limit.
What is 100 kph in mph?
100 kph is equal to 62.14 mph. This is a common European motorway speed limit.
Why does the UK use mph?
Like miles for distances, the UK retained miles per hour for speed limits when metrication began. All UK road signs show speed in mph and this is unlikely to change due to the cost of replacing signs.
What is 30 mph in kph?
30 mph is equal to 48.28 kph. This is the standard UK urban speed limit.