is this bit of math correct i found it on the net and used it to see how fast my robot would be


The circumference of the wheel = C in Inches
C*RPM = distance traveled in inches for a minute
C* RPM* 60 = distance traveled in inches for an Hour
(C* RPM * 60)/63360 = MPH

If C is in feet
(C * RPM * 60)/5280 =MPH