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Miles Per Hour to Meters Per Second Converter

Instant, two-way conversion across common engineering units.

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1 mph = 0.44704 m/s(Miles per hour → Metres per second)

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Converting miles per hour to meters per second

To convert miles per hour to meters per second, multiply the value by 0.44704. Speed conversions appear in wind loading, air velocity in ducts and transport analysis, where codes mix metric and imperial units.

Miles Per Hour (mph)

Miles per hour (mph) is the road and wind speed unit in the US and UK.

Origin
Derived from the statute mile of 1,609.344 m.
Where it is used
Used for design wind speeds in US codes and for traffic and transport data.
Relation to SI
1 mph = 0.44704 m/s exactly.

Meters Per Second (m/s)

Meters per second (m/s) is the SI derived unit of speed.

Origin
Defined directly from the SI meter and second.
Where it is used
Used for wind speed in structural codes, air velocity in ducts and lift travel speed.
Relation to SI
The SI reference unit for speed in this converter.

Frequently asked questions

How many meters per second are in one mile per hour?

1 mph equals 0.44704 m/s.

How do I convert miles per hour to meters per second?

Multiply the value by 0.44704. For example, 10 mph equals 4.4704 m/s.

How do I convert back from meters per second to miles per hour?

1 m/s equals 2.2369363 mph. The converter above works in both directions, so you can type into either field.

Which speed unit do wind load codes use?

Eurocode and most metric standards state basic wind speed in meters per second, while US standards such as ASCE 7 use miles per hour. Check the averaging period as well as the unit.

What is a knot?

One knot is one nautical mile per hour, about 0.514 m/s. It is standard in marine works, aviation and meteorological data.

Is this speed converter free to use?

Yes. Every unit conversion runs in your browser, needs no account and is free for professional use.

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