Automotive Calculators
Fuel economy, trip cost, EV charging, tyre size, gearing and engine calculators.
Fuel Economy (MPG) CalculatorYour car’s real MPG and cost per mile.Journey Fuel Cost CalculatorFuel cost for a journey or road trip.Fuel Economy ConverterConvert MPG, UK MPG, L/100 km and km/L.EV Charging Cost CalculatorCost to charge an electric car.EV Charging Time CalculatorHow long an electric car takes to charge.Tyre Size CalculatorTyre diameter, width and revolutions from a size code.Tyre Size Comparison CalculatorCompare two tyre sizes and speedometer error.Horsepower CalculatorHorsepower from torque and RPM.Engine Displacement CalculatorDisplacement from bore, stroke and cylinders.Compression Ratio CalculatorStatic compression ratio of an engine.Gear Ratio & Speed CalculatorVehicle speed from RPM, gearing and tyre size.Carburetor CFM CalculatorCarburetor size for an engine.Speedometer Error CalculatorTrue speed after changing tyre size.