Sports Rates (US)

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Equation / Last modified by mike on 2015/07/30 06:47
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MichaelBartmess.Sports Rates (US)

This Sports Rates (US) equation computes the rate, the speed of an athlete, from the distance of his competition and the time elapsed.


How fast is an athlete? Try to guess their speed in mph.

  • How fast is a world class sprinter running when they win the 100 meter dash? 
  • How fast is that Olympic swimmer cruising through the water in the 200 meter backstroke?
  • How fast is that bobsled really traveling?

You input the total distance -- for instance, the 100 meters of the 100 meter sprint -- and the time posted to win the race and this equation will tell you the athlete's speed in miles per hour (mph).

For those thinking in the metric system, click on the output units, change them to kilometers per hour and see how fast they would clock against your car's odometer in the Europe.


You have choices of units and so can combine more than just miles and feet to represent the race distance.  However, in the US system race distances are probably measured in either miles alone, feet alone, or in miles and feet combined.

The outputs can be changed to see the results in SI units if you desire.  For example, you could input 60 miles for distance and 1 hour for time (putting zeroes in feet and seconds inputs) and then change the output units to km/hr.  You will see a value of approximately 96.56 km/hr.  This is a common sight on a US automobile where the speedometer will usually display both mph and km/h and so you often simultaneously see that as you approach 60 mph you are approaching 100 km/h.