Speed Calculators

Gear Ratio Chart

This calculates an overall gear ratio chart. It uses Gear 1, Gear 2 and the Transmission Ratio. The formula calculated by this form is:

Overall gear ratio = (gear1/gear2) x TR

Gear 1:
Gear 2:
Transmission Ratio:
This form takes about 10 secs.

MPH: car specs

This calculates a MPH Chart.
The formula calculated by this form is:

mph = .00297432 x (tire_size/gearratio) x RPM

Tire Size in inches
Gear Ratio
Motor RPM

This form takes about 40 secs.

MPH: race track

This calculates a MPH Chart.
The formula calculated by this form is:

mph = .6818 x (tracklength/seconds)

Track Length in feet (integer)
Lap Time in secs (integer)


This form takes about 10 secs.

 

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