MPH to KM/H Converter (mph to km/h)

60 mph is 96.56064 km/h. Speed converts with the same factor as distance — 1 mile is exactly 1.609344 km, so mph × 1.609344 gives km/h. A US 65 mph limit is 104.6 km/h; a European 130 km/h motorway limit is 80.8 mph.

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How this conversion works

Speedometers, speed limits and storm reports cross this pair every day. Type either side: 30 mph through town is 48.28 km/h, and the 50 km/h limit across most European towns is 31.07 mph.

A fair mental shortcut: km/h is mph plus about three-fifths of itself (× 1.6), which lands within 0.6% of exact — fine for reading a speedo at a glance, with the table below for the exact figures at every common limit.

The exact formula

km/h = mph × 1.609344
The factor is the exact mile: 1.609344 km per mile, the hour being the same in both. The reverse is mph = km/h ÷ 1.609344.

Exact constants, honest rounding. Every conversion here uses the exact international definitions printed on the page (1 inch = 2.54 cm exactly, 1 lb = 0.45359237 kg exactly). Results are rounded for display only — the working underneath is never rounded. For engineering, medical or legal work, verify against a certified instrument.

Miles per hour to Kilometers per hour conversion table

Miles per hour (mph)Kilometers per hour (km/h)
58.04672
1016.09344
1524.14016
2032.18688
2540.2336
3048.28032
3556.32704
4064.37376
4572.42048
5080.4672
Miles per hour (mph)Kilometers per hour (km/h)
5588.51392
6096.56064
65104.60736
70112.65408
75120.7008
80128.74752
85136.79424
90144.84096
95152.88768
100160.9344
Miles per hour (mph)Kilometers per hour (km/h)
110177.02784
120193.12128
130209.21472

Frequently asked questions

How many km/h is 70 mph?

112.65408 km/h.

What is 100 km/h in mph?

62.137119 mph — the figure behind a thousand speedometer photos.

Why do wind speeds use different units again?

Weather at sea and in aviation uses knots (nautical miles per hour). The knots converter is the sister page.

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