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Converters

Speed Converter

Convert speed between common metric, imperial and nautical units quickly and easily.

Speed Conversion

Enter a value and choose the units you want to convert.

Conversion Result

Your converted speed based on the selected units.

Result

0.62137119 mph

Input1 km/h
Converted ToMiles per Hour

Conversion factors are based on standard metric, imperial and nautical speed definitions.

How the speed conversion works

The Speed Converter changes a speed measurement from one unit into another using standard conversion factors.

Common speed units

Kilometers per hour and miles per hour are commonly used for road speeds. Meters per second is widely used in science and engineering, while knots are commonly used in aviation and maritime applications.

Conversion examples

1 km/h ≈ 0.621371 mph
1 mph ≈ 1.609344 km/h
1 m/s = 3.6 km/h
1 knot = 1.852 km/h

Where can a speed converter be useful?

Speed conversions are useful for driving, travel, aviation, boating, sports, engineering, education and everyday calculations where different speed units are used.

Frequently Asked Questions

Which speed units can I convert?

You can convert between kilometers per hour, miles per hour, meters per second, feet per second and knots.

How many miles per hour is 100 km/h?

100 km/h is approximately 62.1371 miles per hour.

How many km/h is 1 knot?

One knot equals exactly 1.852 kilometers per hour.

Is the speed conversion accurate?

The converter uses standard speed conversion factors and displays the result to a practical number of decimal places.