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Auto & Travel Calculators
Free auto and travel calculators: fuel cost, gas mileage, trip time, speed, EV charging cost, tire size and car affordability.
Car Affordability CalculatorHow much car you can afford using the 20/4/10 guideline.Car Depreciation CalculatorA car’s value year by year from first-year and later depreciation.Commute Cost CalculatorWhat driving to work costs per day, month and year.Cost Per Mile CalculatorThe true cost of driving per mile: fuel plus ownership costs.EV Charging Cost CalculatorWhat it costs to charge an electric car from one level to another.EV Charging Time CalculatorHow long an electric car takes to charge on any charger.Fuel Consumption ConverterConvert between US mpg, UK mpg, L/100 km and km/L.Gas Cost CalculatorFuel used and cost for a trip, split between passengers.Gear Ratio CalculatorGear ratio from tooth counts, and road speed at a given RPM.Horsepower CalculatorHorsepower from torque and RPM, or from quarter-mile results.MPG CalculatorMiles per gallon from the distance driven and fuel used.Speed CalculatorSolve speed, distance or time from the other two.Stopping Distance CalculatorReaction, braking and total stopping distance at any speed.Tire Size CalculatorTire diameter and revs per mile, plus speedometer error vs a new size.Trip Time CalculatorDriving time and arrival time from distance, speed and stops.