App Detail » CarMath

What's New

Added six new calculations:

Flywheel Horsepower by weight and 1/4 ET Flywheel Horsepower by quarter MPH and weight
Flywheel Horsepower by RPM and Torque
Cubic Inches by Liters
Liters by Cubic Inches
Travel Time

Renamed all existing HP equations to RWHP so users would know it is a rearwheel measurement, not the new flywheel equations that takes into consideration the percentage lost to the drivetrain.

App Description

CarMath is an intuitive, easy-to-use application that provides answers to 22 vehicle equations. How big of a carburetor do you need? How much will your next trip cost? How much horsepower do you have? How long will your travel time be? How many cubic inches is a 4.3 liter motor? CarMath includes the following formulas:

1/8 Mile ET by 1/4 Mile ET
1/4 Mile ET by 1/8 Mile ET
1/4 Mile ET by weight and horsepower
1/4 Mile MPH by weight and horsepower
Rearwheel Horsepower by weight and 1/4 ET
Flywheel Horsepower by weight and 1/4 ET
Rearwheel Horsepower by quarter MPH and weight
Flywheel Horsepower by quarter MPH and weight
Rearwheel Horsepower by RPM and Torque
Flywheel Horsepower by RPM and Torque
Torque by RPM and horsepower
Street carburetor CFM size requirement
Racing carburetor CFM size requirement
Theoretical carburetor CFM size requirement
MPH by RPM, Tire Diameter, and Gear Ratio
RPM by MPH, Tire Diameter, and Gear Ratio
Gear Ratio by RPM, Tire Diameter, and MPH
Tire Diameter by MPH, RPM, and Gear Ratio
Cubic Inches by Liters
Liters by Cubic Inches
Estimated Trip Cost
Estimated Travel Time

*Calculations are approximate and should be used for estimation only.

App Changes