Automotive Calculators
Fuel cost, gas mileage, tire size, horsepower, towing and car loan calculators.
17 calculators
- Car Cost per Mile CalculatorCalculate the true cost of owning and driving a car per mile, per month and per year, including fuel, insuranc
- Car Depreciation CalculatorEstimate how much a new or used car will be worth after each year of ownership, using a first-year depreciatio
- Car Lease CalculatorCalculate a monthly car lease payment from price, down payment, residual value, money factor or APR, term and
- Compression Ratio CalculatorCalculate static engine compression ratio from bore, stroke, chamber volume, piston dish or dome, head gasket
- Engine Displacement CalculatorCalculate engine displacement in cubic inches, cc and liters from bore, stroke and number of cylinders. Ideal
- Engine Torque CalculatorCalculate engine torque in lb-ft or N·m from horsepower and RPM using the 5,252 constant. Convert dyno horsepo
- EV Charging Cost CalculatorCalculate what it costs to charge an electric car at home or on the road from battery size, charge level, elec
- Fuel Cost CalculatorEstimate the gas cost of a road trip from distance, fuel economy and price per gallon or liter. Includes round
- Fuel Injector Size CalculatorCalculate the fuel injector size you need in lb/hr and cc/min from target horsepower, BSFC, number of injector
- Gas Mileage CalculatorCalculate your real gas mileage in MPG or L/100 km from miles driven and gallons used at a fill-up, plus your
- Gear Ratio CalculatorCalculate the gear ratio from driving and driven gear teeth, and the resulting output RPM and torque. Works fo
- Horsepower CalculatorCalculate engine horsepower from torque and RPM, in hp, kW and metric PS. Works with lb-ft or N·m torque figur
- Piston Speed CalculatorCalculate mean piston speed in feet per minute and meters per second from stroke and engine RPM, and see wheth
- Quarter Mile CalculatorEstimate quarter-mile ET and trap speed from horsepower and vehicle weight, or estimate horsepower from your d
- RPM to MPH CalculatorCalculate vehicle speed from engine RPM, or RPM from speed, using tire diameter, transmission gear ratio and a
- Tire Size CalculatorDecode a tire size like 225/45R17 into diameter, width, sidewall height and revolutions per mile, and compare
- Wheel Horsepower CalculatorConvert crank horsepower to wheel horsepower or wheel to crank using typical drivetrain loss for FWD, RWD and