Car Calculator for Android
By Rob Robinette
The Car Calculator©
is free and available at this link to the
Google Play Store. You can also download the latest version directly
from this website:
Car Calculator for Android apk
Automobile Performance Calculator designed for the road racer,
drag racer and car enthusiast.
This app has 14 pages of calculators:
The Horsepower Calculator will give HP from torque
or torque from HP, HP at altitude, 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 corrections include humidity.
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 Weight
Corrections, Wedge and
Bite. The white boxes show
the amount of weight change needed to achieve a 50% Cross Weight.
The Fuel Economy Calculator gives miles per gallon
or kilometers per liter.
The Speedometer & 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 Alignment Calculator will
convert Toe Inches to degrees and Toe degrees to Toe Inches.
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 diameter and width of a tire from it's sidewall markings.
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.
V1.7 Drag Racing Calculator gets 60 Feet to 1/4 ET, 1/4 ET to 60
Feet, 1/8 ET to 1/4 ET, 1/4 ET to 1/8 ET, 1/8 Trap Speed to 1/4 Trap Speed and
1/4 Trap Speed to 1/8 Trap Speed conversions.
V1.6 Adds temperature conversions to the Conversion Calculator.
This app does not use or accesses any data or files on your
If you prefer working with spreadsheets here's my
automath calculator for Excel and