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Italianokm/h to mph: the formula and an example
To convert km/h to mph, divide by 1.609344: mph = km/h ÷ 1.609344. Example: the 130 km/h limit on French and Italian motorways is 130 ÷ 1.609344 = 80.78 mph.
The converter above is set to km/h to mph. The answer updates as you type, to six significant figures. The "Formula:" line shows the factor, the "In every unit" table adds meters per second and knots, and the swap button flips it to mph to km/h.
km/h to mph chart
| km/h | mph | What it is |
|---|---|---|
| 8 | 5.0 | Brisk walk to light jog |
| 12 | 7.5 | Steady running pace |
| 25 | 15.5 | E-bike assistance cutoff in Europe and the UK |
| 30 | 18.6 | Zone 30 in European towns |
| 40 | 24.9 | Pro cycling bunch on the flat |
| 50 | 31.1 | Built-up areas across Europe |
| 60 | 37.3 | Some Canadian city arteries |
| 80 | 49.7 | French two-lane roads, Canadian rural roads |
| 90 | 55.9 | Rural roads in Spain and Italy |
| 100 | 62.1 | Canadian highways, German rural roads |
| 110 | 68.4 | French expressways, or motorways in the rain |
| 120 | 74.6 | Spanish motorways |
| 130 | 80.8 | French and Italian motorways |
| 200 | 124.3 | A fast car on a German Autobahn |
Driving, running, cycling in metric countries
Reading signs abroad
In continental Europe the number in a red circle means km/h, and Canadian speed signs, white rectangles much like American ones, are in km/h too. A "50" in a French village is 31 mph, close to the 30 mph you would expect at home. A "100" on a Canadian highway is 62 mph, slower than most US interstates. On stretches of German Autobahn with no posted limit, the advisory speed is 130 km/h, or 81 mph.
Running and the treadmill
Gym treadmills outside the US and the UK are set in km/h. If you usually jog at 6 mph, dial in about 9.7 km/h; 12 km/h is 7.5 mph, an 8:03 mile pace.
Bikes and e-bikes
European and British e-bikes stop assisting at 25 km/h, which is the 15.5 mph you see on UK spec sheets. A bike computer set to metric showing 30 km/h means you are riding at 18.6 mph.
Mental math: divide by 8, times 5
Divide the km/h figure by 8, then multiply by 5. For 80 km/h: 80 ÷ 8 = 10, and 10 × 5 = 50 mph, against an exact 49.71. That shortcut runs 0.6% high. The simpler "times 0.6" runs 3.4% low: it turns 130 km/h into 78 mph when the real figure is almost 81.
Frequently asked questions
What is 100 km/h in mph?
62.14 mph. In the other direction, 100 mph is 160.93 km/h.
How fast is 120 km/h in mph?
74.56 mph, which is why 120 km/h feels like a normal US interstate speed.
Can I switch my rental car's speedometer to mph?
Many cars with a digital dashboard let you change the display unit in the settings menu. If yours cannot, note a few equivalents from the chart above before you set off: 50 km/h is 31 mph, 90 km/h is 56 mph, 130 km/h is 81 mph.