JavaScript Speed Calculators

This calculates the MPH of a car

The formula calculated by this form is:

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

Tire Size in inches
Gear Ratio
Motor RPM
MPH

This calculates the MPH of a car

The formula calculated by this form is:

mph = .6818*(tracklength/seconds)
 
Track Length in feet
Lap Time in seconds
MPH

This calculates the overall gear ratio of a car

It uses Gear 1, Gear 2 and the Transmission Ratio. The formula calculated by this form is:

overall gear ratio = (gear2/gear1)*TR

# of teeth, gear1
# of teeth, gear2
Trans Ratio
Overall Ratio 

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