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Meter Per Second Converters

Convert m/s to and from km/h, mph, feet per second, knots, Mach and other speed units.

What this tool does

Convert m/s to and from km/h, mph, feet per second, knots, Mach and other speed units. Type an amount in meters per second, choose the units, and the tool converts it to miles per hour. It offers 12 speed units and also shows the same amount in the others.

Inputs

  • Value: A number.
  • From: Choose one from 12 options, including Millimeter per second, Centimeter per second, Meter per second, Meter per hour, Kilometer per hour, Kilometer per second. Starts as Meter per second.
  • To: Choose one of the same 12 units as "From". Starts as Mile per hour.

How to use

  1. Enter the amount you want to convert.
  2. Choose the unit to convert from and the unit to convert to.
  3. Read the result: the converted amount and the same amount in the other units. It appears once every required field has a valid value.

Worked examples

Conversions from meters per second to miles per hour:

  • 1 m/s ≈ 2.236936 mph
  • 5 m/s ≈ 11.184681 mph
  • 10 m/s ≈ 22.369363 mph
  • 50 m/s ≈ 111.846815 mph
  • 100 m/s ≈ 223.693629 mph

Multiply the number of meters per second by about 2.236936 to get miles per hour. The factor follows from exact definitions. It has more digits than fit here, so it is shown rounded.

Sources: Meter per second: SI Brochure, 9th edition (2019). Mile per hour: exact by definition.

Limitations

  • Mach here means the standard-atmosphere sea level value only. At altitude or in warmer or colder air, the same Mach number is a different speed.

FAQs

Q: How many mph is 10 m/s?
A: Ten meters per second is 22.3694 mph.
Q: How many knots is 1 m/s?
A: One meter per second is 1.94384 knots.
Q: Can I convert the other way, from miles per hour to meters per second?
A: Yes. Choose miles per hour in the From box and meters per second in the To box.
Q: Which Mach number does the page use?
A: Mach is shown at sea level in the ISO standard atmosphere at 15 °C, where the speed of sound is 340.294 m/s. The real speed of sound changes with air temperature and altitude.

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