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8 calculators
Car Performance Calculators
Calculate horsepower (PS), 0-100 km/h times, quarter-mile ET, gear ratios, tyre sizes and more. Free performance and technical calculators for enthusiasts, tuners, and gearheads.
Horsepower CalculatorLive
PS from torque and RPM using the standard formula.
Tyre Size CalculatorLive
Diameter difference, speedometer error, and more.
0-100 km/h EstimatorLive
Estimated 0-100 time from power, weight, and drivetrain.
Quarter Mile CalculatorLive
Estimated ET and trap speed from power & weight.
Braking Distance CalculatorLive
Total stopping distance at any speed and condition.
Gear Ratio CalculatorLive
Final drive ratio and RPM at any cruising speed.
Turbo Boost CalculatorNew
Power gain from turbo or supercharger boost.
Power-to-Weight RatioNew
PS per ton and a 0-100 estimate.