Converters

Kilometers per Hour to Miles per Hour Converter

Convert kilometers per hour to miles per hour instantly. 1 kilometer per hour = 0.621371 miles per hour.

From

0.621371

1 km/h = 0.621371 mph

Common conversions

From 1 kilometers per hour

Meters per Second (m/s)0.277778
Miles per Hour (mph)0.621371
Feet per Second (ft/s)0.911344
Knots (kn)0.539957

Popular speed conversions

Miles per Hour → Kilometers per Hour Kilometers per Hour → Miles per Hour Meters per Second → Kilometers per Hour Miles per Hour → Meters per Second Knots → Miles per Hour Knots → Kilometers per Hour Feet per Second → Miles per Hour Meters per Second → Feet per Second

Method

How it works

Miles per Hour = Kilometers per Hour × 0.6213711922

Multiply the number of kilometers per hour by 0.6213711922 to get miles per hour. To go back, multiply by 1.609344. Examples: 1 km/h = 0.621371 mph · 5 km/h = 3.10686 mph · 10 km/h = 6.21371 mph · 100 km/h = 62.1371 mph.

FAQ

Frequently asked

How many miles per hour are in a kilometer per hour?

1 kilometer per hour = 0.621371 miles per hour.

What is the formula to convert kilometers per hour to miles per hour?

Miles per Hour = Kilometers per Hour × 0.6213711922

Is this conversion exact?

The conversion factor between kilometers per hour and miles per hour is defined by international standards and is exact to at least 10 significant figures here.

Can I convert in the opposite direction?

Yes — use our Miles per Hour to Kilometers per Hour converter, or multiply your value by 1.609344.