Speed Converter 2026: km/h to mph, Knots, m/s and ft/s
Type any speed in km/h or mph for an instant conversion, with a reference table of common limits in both units and a visual scale to build intuition.
Common Speed Limits Worldwide
| Country | Urban | Rural | Motorway | Unit |
|---|---|---|---|---|
| United Kingdom | 30 | 60 | 70 | mph |
| United States | 25-35 | 55 | 65-75 | mph |
| Germany | 50 | 100 | None* | km/h |
| France | 50 | 80 | 130 | km/h |
| Italy | 50 | 90 | 130 | km/h |
| Japan | 40-60 | 60 | 100 | km/h |
| Australia | 50 | 100 | 110 | km/h |
| UAE | 60-80 | 100 | 120-140 | km/h |
*Germany: Advisory limit of 130 km/h on Autobahn (no enforced limit on many sections)
Hire-car dashboards and road signs do not always speak the same unit, and doing the sum in your head at motorway speed is a poor plan. Type a figure in km/h or mph and the equivalent appears immediately, alongside conversions to metres per second, knots and feet per second. A quick-reference table lists the speed limits you actually meet abroad in both units, and a visual scale helps the conversion stick so you stop reaching for the calculator at every sign.
Speed Unit Converter
Convert between km/h and mph instantly. Essential for drivers crossing between metric and imperial countries, or for understanding speed limits when renting a car abroad.
What This Tool Does
Enter a speed in km/h or mph and the converter instantly shows the equivalent in the other unit. A quick-reference table shows common speed limits in both units, and a visual scale helps you build intuition for the conversion.
How to Use It
- Enter a speed value in either km/h or mph.
- The equivalent value appears instantly in the other unit.
- Use the quick-reference table for common speed limits (30, 50, 60, 70, 80, 100, 110, 120, 130 km/h).
- The visual scale shows the relative speed to help build familiarity.
When You Need This
The most common situation is driving from a km/h country to a mph country (or vice versa). The UK, US, Myanmar, and Liberia use mph — all other countries use km/h. A 60 mph limit is 97 km/h, not 60 km/h. Getting this wrong can result in speeding fines or dangerously slow driving on motorways.
Conversion Formula
1 mile = 1.60934 kilometres. To convert km/h to mph, divide by 1.60934. A quick mental approximation: multiply km/h by 0.6 for a rough mph figure (100 km/h is approximately 60 mph).
Frequently Asked Questions
Divide km/h by 1.60934 to get mph. For example, 100 km/h is approximately 62.1 mph. Use our converter above for instant, accurate conversions.
The United Kingdom, United States, and a few other countries (Myanmar, Liberia) use miles per hour. The vast majority of countries worldwide use kilometres per hour.
One knot equals 1.852 km/h (or 1.151 mph). Knots are primarily used in maritime and aviation contexts, not for road speed limits.