MPH to KPH Converter
Type a speed in either box for an instant, two-way conversion between miles per hour (mph) and kilometres per hour (km/h). Below the calculator you'll find a full mph-to-kph chart for the common values.
Conversion factor: 1 mph = 1.60934 km/h. Editing either field updates the other live.
Need it while you're actually moving? Use the live GPS speedometer — it reads your real speed and shows mph and km/h at once.
MPH to KPH Chart
Common speeds from 5 to 300 mph, converted both directions. Read left-to-right for mph → km/h, or use the right pair for km/h → mph.
| mph | → km/h | km/h | → mph |
|---|---|---|---|
| 5 mph | 8 km/h | 5 km/h | 3.1 mph |
| 10 mph | 16.1 km/h | 10 km/h | 6.2 mph |
| 15 mph | 24.1 km/h | 15 km/h | 9.3 mph |
| 20 mph | 32.2 km/h | 20 km/h | 12.4 mph |
| 25 mph | 40.2 km/h | 25 km/h | 15.5 mph |
| 30 mph | 48.3 km/h | 30 km/h | 18.6 mph |
| 40 mph | 64.4 km/h | 40 km/h | 24.9 mph |
| 50 mph | 80.5 km/h | 50 km/h | 31.1 mph |
| 60 mph | 96.6 km/h | 60 km/h | 37.3 mph |
| 70 mph | 112.7 km/h | 70 km/h | 43.5 mph |
| 80 mph | 128.7 km/h | 80 km/h | 49.7 mph |
| 90 mph | 144.8 km/h | 90 km/h | 55.9 mph |
| 100 mph | 160.9 km/h | 100 km/h | 62.1 mph |
| 110 mph | 177 km/h | 110 km/h | 68.4 mph |
| 120 mph | 193.1 km/h | 120 km/h | 74.6 mph |
| 130 mph | 209.2 km/h | 130 km/h | 80.8 mph |
| 140 mph | 225.3 km/h | 140 km/h | 87 mph |
| 160 mph | 257.5 km/h | 160 km/h | 99.4 mph |
| 180 mph | 289.7 km/h | 180 km/h | 111.8 mph |
| 200 mph | 321.9 km/h | 200 km/h | 124.3 mph |
| 220 mph | 354.1 km/h | 220 km/h | 136.7 mph |
| 240 mph | 386.2 km/h | 240 km/h | 149.1 mph |
| 260 mph | 418.4 km/h | 260 km/h | 161.6 mph |
| 280 mph | 450.6 km/h | 280 km/h | 174 mph |
| 300 mph | 482.8 km/h | 300 km/h | 186.4 mph |
Values rounded to one decimal place. Exact factor: 1 mph = 1.60934 km/h.
How to convert miles per hour to kilometers per hour
Converting mph to kph is a single multiplication: a speed in miles per hour times 1.60934 gives you kilometres per hour. That one number answers every way the question gets phrased — "mph to kmh", "mph to km/h", "miles per hour to kilometers per hour", or simply "mph kph". They all resolve to the same calculation. To reverse it, divide by 1.60934, which is the same as multiplying by 0.621371.
This conversion matters because the United States and the United Kingdom post speed limits in miles per hour while nearly everywhere else uses kilometres per hour. If you drive an American or British car — or read US road signs — and then cross into a metric country, the numbers stop being intuitive. A "60" on a US sign and a "60" on a French sign are wildly different speeds: 60 mph in km/h is about 97 km/h, a normal open-road pace, whereas 60 km/h is a slow town limit. Reading the unit correctly is the whole game.
A handful of values are worth committing to memory because they line up with real limits. 30 mph is about 48 km/h (the common UK urban limit). 50 mph is roughly 80 km/h. 70 mph in kph is close to 113 km/h — the UK motorway limit — and 80 mph is about 129 km/h. Anchor those and you can estimate the rest on the fly. When you need the exact figure, the live converter and the mph-to-kph chart above have it.
Remember that "kph", "kmph" and "km/h" all mean the same thing — kilometres per hour — so a search for a mph to kph chart and one for "mph to km/h" land on identical maths. The 1.60934 factor (and its inverse, 0.621371) is what every accurate speedometer, GPS device and navigation app uses under the hood, so the numbers here match what a properly calibrated dashboard shows.
When you need to convert while you're driving
A chart is ideal when you're planning ahead. The hard part is doing it in motion: you've collected a rental car abroad whose dashboard reads in km/h while every instinct you have is in mph — or you've taken a US-spec car onto a metric motorway. Multiplying by 1.6 at 70 mph is exactly the moment you shouldn't be looking away from the road.
The same friction appears with an imported car whose speedometer only shows its origin market's units, and on the water, where a boat's instruments often read in knots while the posted limit is in mph or km/h. In each case the fix isn't a lookup table — it's a display that already shows the unit you think in.
That's what our tools do. The free live GPS speedometer runs in your browser and shows your real speed in mph, km/h or knots — no install, no mental arithmetic. For a permanent in-car setup, the MPH speedometer app gives you a big, glanceable readout with a HUD windshield mode and Picture-in-Picture, so the number you need is always the number on screen.
Converting the other way? Use the KPH to MPH converter — same live calculator and chart, km/h → mph.
MPH to KPH — frequently asked
How do you convert mph to kph?
Multiply the speed in miles per hour by 1.60934 to get kilometres per hour. For example, 60 mph × 1.60934 = 96.6 km/h. To go the other way, divide by 1.60934 (or multiply by 0.621371).
What is 60 mph in km/h?
60 mph is about 96.6 km/h (60 × 1.60934 = 96.56). It is the most-searched mph-to-kph value because 60 mph is a common US and UK limit, close to the 100 km/h used elsewhere.
What is 70 mph in kph?
70 mph equals about 112.7 km/h. It is the standard motorway limit in the UK, roughly equivalent to the 110–120 km/h limits used across continental Europe.
Is kph the same as km/h?
Yes. "kph", "km/h", "kmh" and "kilometers per hour" all describe the same unit. The official written form is km/h; kph is common shorthand you'll see on dashboards and in search boxes.
Stop converting in your head
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