In the International System of Units (SI), speed is commonly expressed in meters per second (\\(\\text{m/s}\\)). This unit measures the distance in meters traveled each second.
In the United States and many other countries, speed is often given in miles per hour (\\(\\text{mph}\\)). One mile equals 1,609.344 meters, and one hour equals 3,600 seconds.
Why convert between m/s and mph?
Engineering projects that involve both metric and imperial specifications.
Automotive testing where test rigs use m/s but road speed limits are posted in mph.
Scientific research and data reporting for international audiences.
\\(\\text{m/s}\\) measures distance in meters each second, while \\(\\text{mph}\\) measures miles each hour. The units differ by a factor of 1,609.344 meters per mile and 3,600 seconds per hour.
Yes. The factor is derived from the exact definitions: 1 mile = 1,609.344 m and 1 hour = 3,600 s, so \\(1\\,\\text{m/s}=\\frac{3,600}{1,609.344}\\,\\text{mph}=2.2369362920544025\\,\\text{mph}\\).
"On fait la science avec des faits, comme on fait une maison avec des pierres ; mais une accumulation de faits n'est pas plus une science qu'un tas de pierres n'est une maison." "Science is built up of facts, as a house is built of stones; but an accumulation of facts is no more a science than a heap of stones is a house." — Henri Poincaré (French Mathematician, Theoretical Physicist & Mining Engineer)