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

To convert miles per hour to kilometers per hour, multiply the mph value by 1.60934. For example: 1) 1 mph = 1.60934 km/h, 2) 30 mph = 48.28 km/h, 3) 60 mph = 96.56 km/h. Our calculator handles this automatically.

What is 1 mile per hour equal to in kilometers per hour?

1 mile per hour equals exactly 1.60934 kilometers per hour. This is a standard conversion used worldwide in speed measurements. For quick estimates, you can think of 1 mph as about 1.6 km/h, or 60 mph as about 97 km/h.

Why would I need to convert mph to km/h?

Converting mph to km/h is useful when: 1) Traveling between countries with different speed units, 2) Understanding international speed limits, 3) Converting between imperial and metric units, 4) Reading vehicle specifications from different regions.

What are common speed limit conversions?

Common speed limit conversions include: 1) 30 mph = 48 km/h, 2) 55 mph = 89 km/h, 3) 60 mph = 97 km/h, 4) 70 mph = 113 km/h. For quick estimates, multiply mph by 1.6 to get km/h.

Miles per Hour to Kilometers per Hour Conversion Calculator

MPH to KPH Converter

Symbol: mph (miles per hour), km/h (kilometers per hour)

What they are:

Miles per hour (mph) is the imperial unit of speed, while kilometers per hour (km/h) is the metric unit. Both measure the distance traveled in their respective units over the course of one hour.

Conversion Facts:

1 mph = 1.60934 km/h
1 km/h = 0.621371 mph
60 mph ≈ 97 km/h
100 km/h ≈ 62 mph

From:

Mile per Hour (mph)

To:

Kilometer per Hour (km/h)

Conversion Result

1 mph=

1.000 km/h

Use the converter above to calculate different values and units

What are Speed Measurements?

Speed measurements quantify how quickly an object moves over a given distance and time. Miles per hour (mph) and kilometers per hour (km/h) are the most common units used to measure the speed of vehicles, athletes, and other moving objects.

The relationship between mph and km/h is based on the conversion between miles and kilometers (1 mile = 1.60934 kilometers). This conversion factor is important for international travel, vehicle specifications, and understanding speed limits in different countries.

Common MPH to kph Conversions

MPH	KM/H	Common Reference
15	24.14	School zone speed limit (US)
20	32.19	Residential area speed limit
25	40.23	Typical neighborhood speed limit
30	48.28	Urban speed limit (UK)
55	88.51	Rural highway speed limit
60	96.56	Motorway speed limit (UK)
70	112.65	Interstate highway speed limit (US)
100	160.93	Some Autobahn sections (Germany)

Practical Use Cases

International Travel: Understanding speed limits when driving in countries that use different measurement systems
Vehicle Specifications: Comparing performance specs of vehicles from different regions
GPS Navigation: Converting between speed units displayed on different navigation systems
Sports and Fitness: Converting running, cycling, or swimming speeds for international competitions
Weather Reporting: Understanding wind speeds reported in different units
Aviation: Converting between different speed measurements used in flight planning

Educational Resource

This educational video explains the relationship between miles per hour and kilometers per hour and demonstrates how to convert between these units with practical examples and applications.

Conversion Tools

Download Conversion Chart (PDF)

Get our comprehensive mph to km/h conversion chart for quick reference when you're offline.

MPH to KPH Conversion FAQs

Find answers to common questions about converting between miles per hour and kilometers per hour.