Units of measurement
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Mile per second (mi/s)
Mile per hour (mph)
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Information
Mile per second (mi/s)
Mile per second (mi/s) is a unit of speed equal to one mile traveled per second. It is used for high-speed measurements, such as in astronomy.
Mile per hour (mph)
Mile per hour (mph) is a unit of speed equal to one mile traveled per hour. It is used in the United States and the United Kingdom to measure vehicle and aircraft speeds.