Km/h To Mph
Convert km/h to mph for road signs, GPS readouts and vehicle dashboards. The standard EU motorway limit of 130 km/h is 80.8 mph; a residential 50 km/h zone is 31 mph.
Last updated: May 2026
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When you need km/h to mph
Speed limits in the UK and USA are posted in miles per hour; most of the rest of the world uses km/h. Converting matters when driving abroad, reading international vehicle specs or checking GPS apps that switch units depending on region. The formula is: mph = km/h × 0.62137.
A useful anchor: 100 km/h = 62.1 mph. The standard EU motorway limit of 130 km/h is 80.8 mph — just under the UK national motorway limit of 70 mph (112.7 km/h).
Speed limit reference table
| km/h | mph | Typical context |
|---|---|---|
| 30 | 18.6 | Residential zone (EU) |
| 50 | 31.1 | Urban speed limit (EU) |
| 70 | 43.5 | Rural single carriageway (EU) |
| 90 | 55.9 | Regional road / dual carriageway (EU) |
| 100 | 62.1 | Motorway reference / US highway |
| 110 | 68.4 | Motorway limit (NL, ES) |
| 120 | 74.6 | Motorway limit (BE, PL, CZ) |
| 130 | 80.8 | Motorway limit (FR, IT, PT — EU standard) |
Frequently Asked Questions
What is 100 km/h in mph?
100 km/h = 62.14 mph. This is the most common reference point for international drivers. US Interstate highways typically post 65–75 mph (105–121 km/h), so 100 km/h sits just below most US highway limits but above typical EU urban limits.
What is 130 km/h in mph?
130 km/h = 80.78 mph. This is the standard motorway speed limit in France, Italy, Portugal and many other EU countries. Germany's recommended motorway speed (Richtgeschwindigkeit) is also 130 km/h, though many Autobahn sections are unrestricted.
Is 60 mph the same as 100 km/h?
No. 60 mph = 96.6 km/h. The nearest round-number pairings are 60 mph ≈ 97 km/h and 100 km/h ≈ 62 mph. Using them interchangeably introduces a 4% error — acceptable for rough estimates, not for speed limit compliance or vehicle specifications.
Why do GPS apps switch between km/h and mph?
GPS navigation apps detect your country from location data and apply the local speed convention. Crossing from France (km/h) into the UK (mph) shifts the display — but the speed being measured does not change, only the unit. If your app shows the wrong unit, check the regional settings rather than converting the displayed number.
How do I convert km/h to mph in my head?
Multiply by 0.6 for a quick estimate. So 120 km/h × 0.6 = 72 mph (true: 74.6 mph). The 0.6 rule understates by about 3.6%, which is close enough for orientation: 80 km/h ≈ 48 mph, 100 km/h ≈ 60 mph. Use the calculator for precision.