About Car Calculator
Automobile Performance Math Calculator designed for the road racer, drag racer or car enthusiast. For all of the calculations simply fill in the yellow boxes and touch 'Calculate' The Horsepower Calculator will give HP...
Automobile Performance Math Calculator designed for the road racer, drag racer or car enthusiast.
For all of the calculations simply fill in the yellow boxes and touch 'Calculate'
The Horsepower Calculator will give HP from torque or torque from HP, HP with altitude change, Flywheel HP from Wheel HP, Wheel HP from Flywheel HP and Estimated Top Speed with Added HP.
The Dyno Correction Calculator will give SAE, MSA and STD correction factors and calculate corrected horsepower.
The Torque Calculator will give Drive Wheel Torque, Wheel Thrust, Acceleration and Weight Transfer.
The Drag Race Calculator estimates new 1/4 Mile ET & Trap Speed at new track and/or new weather conditions, 60 Feet time from 1/4 ET, 1/4 ET from 60 Feet, 1/8 ET from 1/4 ET, 1/4 ET from 1/8 ET, 1/8 Trap Speed from 1/4 Trap Speed and 1/4 Trap Speed from 1/8 Trap Speed. It will also estimate 1/4 Mile Elapsed Time and Trap Speed from horsepower and will derive horsepower from ET or Trap Speed. Weight transfer at launch is also calculated.
Enter wheel weights into the Corner Balance Calculator and it gives Cross Weight, Cross Weight%, Wheel Correction weights, Wedge and Bite. The Wheel Correction Weights shown in the white boxes tell you how much wheel weight change is needed to get a 50% Cross Weight. Road racers and street cars should shoot for a 50% (balanced) Cross Weight.
The Fuel Economy Calculator gives miles per gallon or kilometers per liter.
The Speedometer and Odometer Calculator will calculate their error rates.
The Conversions Calculator will convert both ways: Miles/Kilometers, Foot-Pounds/Inch-Pounds, Foot-Pounds/Newton-Meters, PSI/BAR.
The Weight Transfer Calculator will give Front-to-Rear and Lateral Weight Transfer.
The Skid Pad g Calculator will give Average Lateral g around a skid pad.
You can also calculate Brake Specific Fuel Consumption, Engine Air Capacity and estimate the size of a tire from it's sidewall markings.
Previous Versions
Here you can find the changelog of Car Calculator since it was posted on our website on 2019-10-25 16:37:23.
The latest version is and it was updated on 2024-04-23 09:55:45. See below the changes in each version.
Car Calculator version
Updated At: 2023-12-07
Changes: V2.0.3 Changed "Flywheel HP from Wheel HP" starting value.
V2.0.2 Fixed "Calculate Flywheel HP from Wheel HP" calculation.
V2.0.1 Added app icon.
V2.0 Predicted 1/4 Mile ET & Trap Speed at new track and/or new weather conditions added to Drag Race Calculator.
V1.8 Drag Racing Calculator gets Ideal Differential Gear Ratio calculation and 60 Feet to 1/8 ET and 1/8 ET to 60 Feet conversions.
Car Calculator version
Updated At: 2021-11-10
Changes: Updated Android API
Car Calculator version
Updated At: 2021-04-18
Changes: Changed horsepower driveline loss to 11%
Car Calculator version
Updated At: 2020-08-24
Changes: Added Android 10 compatibility
Car Calculator version
Updated At: 2019-10-11
Changes: Android 9 compatibility.
Disclaimer
Official Google Play Link
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