Automotive Calculators

Estimate the cost and energy needed to charge your EV to a target level.

Estimate driving range from usable battery capacity and efficiency.

Estimate remaining EV battery capacity after years of use.

Calculate how long it takes to charge an EV given charger power.

Convert engine torque and RPM into horsepower.

Calculate horsepower per metric ton for a vehicle.

Calculate total engine displacement from bore, stroke, and cylinder count.

Calculate engine compression ratio from swept and clearance volume.

Calculate final drive ratio from gear ratio and differential ratio.

Calculate wheel RPM from vehicle speed and tire diameter.

Calculate sidewall height and overall diameter from metric tire size.

Calculate tire circumference from overall diameter.

Calculate temperature-compensated tire pressure and convert units.

Calculate tire load utilization percentage for a vehicle.

Convert wheel offset to backspacing.

Calculate bolt spacing from bolt circle diameter and lug count.

Calculate required fuel injector size for a target horsepower.

Estimate required turbocharger airflow for a target horsepower.

Estimate horsepower gain from a given boost pressure.

Calculate air-fuel ratio and lambda from air and fuel mass.

Calculate front/rear brake force distribution percentage.

Convert wheel horsepower to flywheel (brake) horsepower.

Estimate quarter-mile ET and trap speed from weight and horsepower.

Estimate 0-60 mph acceleration time from weight and horsepower.

Calculate total stopping distance including reaction and braking distance.