Last updated: 3 October 2026
Reviewed by Jordan Morley, FA Level 2 Football Coach
Convert mph → m/s
About this conversion
One mph equals 0.44704 m/s. Metres per second is the scientific standard for speed and the unit used in athletics sprint analysis.
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Why this conversion matters
US-based speed readings (baseball pitch speed, wind gusts, NFL player speed) are usually reported in mph for broadcast audiences but need converting to m/s for scientific comparison, biomechanics analysis, or comparing against international (metric) sporting data.
FAQ
What's a 100 mph fastball in m/s?
A 100 mph fastball converts to approximately 44.7 m/s.
Why would I need m/s instead of mph for sports analysis?
Scientific and biomechanics research, along with most non-US sporting data, uses m/s as the standard unit, so converting from mph is necessary to compare US broadcast figures against international studies or data.
Is wind speed in golf reported in mph or m/s?
Golf broadcasts almost universally use mph (or km/h outside the US) for wind speed, since m/s is rarely intuitive for a general sporting audience.