Speed Converter

Converters

Convert between MPH, KPH, Knots, and Mach.

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MPH
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KPH
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Knots

About This Tool

A comprehensive speed unit converter. Instantly translate velocities between Miles per Hour, Kilometers per Hour, Knots, Meters per Second, and Mach.

Frequently Asked Questions

Mach speed is the ratio of an object's speed to the speed of sound. Mach 1 is approximately $767$ mph ($1235$ kph) at sea level.

To convert Kilometers per Hour to Miles per Hour, multiply the value by $0.621371$. Conversely, multiply MPH by $1.60934$ to get KPH.

While originating in maritime navigation, Knots are the standard unit of speed for both sea vessels and aircraft globally.

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