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0-100 km/h Estimator

Estimate a car’s 0–100 km/h acceleration time from its power and weight.

Power

Kerb weight

Drivetrain effectiveness

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How it works

Time ≈ kinetic energy at 100 km/h ÷ (power × effectiveness)

This uses an energy model: the work to reach 100 km/h is the car’s kinetic energy, and average usable power delivers it. The effectiveness factor captures traction, gearing and the fact that peak power isn’t available the whole time. Treat it as a ballpark, not a dyno figure.

Worked example

A 150 hp, 1,400 kg car at 55% effectiveness comes out around 8–9 seconds.

Frequently asked questions

Why is it only an estimate?

Real acceleration depends on the power curve, gearing, tires, launch and aerodynamics — this simplifies all that into one factor.

What effectiveness should I use?

50–60% suits typical road cars; high-traction performance cars can be higher.

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This calculator is for educational purposes. Double-check important results before acting on them.