Convert UnitsFast, accurate unit conversions
Speed

Mph to kmh Converter

Convert mile per hour to kilometer per hour instantly.

Formulakm/h = mph × 1.609344
Sources and methodology1 mph = 1.609344 km/h — exactly. exactly

Quick conversion table

mile per hourkilometer per hour
1 mph1.609344 km/h
5 mph8.04672 km/h
10 mph16.09344 km/h
30 mph48.28032 km/h
50 mph80.4672 km/h
60 mph96.56064 km/h
100 mph160.9344 km/h
120 mph193.12128 km/h

Unit definitions

mile per hour (mph)

mile per hour is a unit of Speed. In this converter it is defined against the category base unit as 1 mph = 0.44704 m/s.

kilometer per hour (km/h)

kilometer per hour is a unit of Speed. In this converter it is defined against the category base unit as 1 km/h = 0.277777777778 m/s.

Example

10 mph = 16.09344 km/h

Sources and methodology

Definitions: BIPM SI Brochure and NIST conversion guidance. Methodology.