KM/H to MPH Converter

Convert kilometers per hour to miles per hour instantly, with a reference table of speed limits worldwide.

Kilometers per hour

Miles per hour

1 km/h = 0.6214 mph

Multiply kilometers per hour by 0.62137119 to get miles per hour.

The link carries the values you entered, so whoever opens it sees the same result. Nothing is stored on our side — the numbers travel in the link itself.

Kilometers per hour to miles per hour reference table

The conversions people look up most often, rounded to 4 decimal places.

Common kilometers per hour to miles per hour conversions
Kilometer per hour (km/h)	Mile per hour (mph)
10 km/h	6.2137 mph
20 km/h	12.4274 mph
30 km/h	18.6411 mph
50 km/h	31.0686 mph
60 km/h	37.2823 mph
80 km/h	49.7097 mph
90 km/h	55.9234 mph
100 km/h	62.1371 mph
110 km/h	68.3508 mph
120 km/h	74.5645 mph
130 km/h	80.7783 mph
160 km/h	99.4194 mph
200 km/h	124.2742 mph

How the kmh to mph converter calculation works

The factor is the same one that converts the distances, since both speeds are "per hour":

mph = km/h ÷ 1.609344

Driving abroad is the usual reason to convert, and the round numbers do not line up:

km/h	mph	Where
30	18.6	Urban limit, much of Europe
50	31.1	Standard urban limit
80	49.7	Rural single carriageway
100	62.1	Rural dual carriageway
110	68.4	Australian highway
120	74.6	European motorway
130	80.8	French autoroute

Note that 100 km/h is 62 mph, not 60 — a distinction that matters where enforcement is automated and tolerances are a few percent.

The German autobahn's Richtgeschwindigkeit is an advisory 130 km/h, or 80.8 mph, on the derestricted sections.

A UK or US car in Europe shows both scales, with mph on the outer ring and km/h inside. A rental with a metric-only display is the common trap: 120 on the dial in France is legal, and the same 120 in Britain is 74 mph over an urban limit.

Two shortcuts:

Take off a third, roughly. 120 km/h → 80 mph, against a true 74.6. Crude but conservative in the safe direction.
Better: multiply by 6 and drop a zero, then add 2%. 120 → 720 → 72 → 73.4. Within a percent.

The precise reciprocal is 0.621371 mph per km/h.

Frequently asked questions

How do I convert kilometers per hour to miles per hour?

Multiply the number of kilometers per hour by 0.621371192 to get miles per hour.

How many miles per hour are in 60 km/h?

60 km/h equals 37.2823 mph. The reference table on this page lists the other values people look up most often.

How do I convert miles per hour back to kilometers per hour?

Divide the number of miles per hour by 0.621371192, or use the swap control on the converter above.

Is this conversion exact?

Yes. The factor is fixed by international definition rather than measured, so the conversion is exact - only the displayed rounding limits precision.

KM/H to MPH Converter