0-100 km/h Time Calculator

About this calculator

A car's 0-100 km/h time is driven primarily by its power-to-weight ratio — engine power divided by curb weight — since accelerating a given mass requires energy proportional to that mass, and more power delivered per kilogram means faster acceleration. Estimation formulas built on this relationship give a reasonable ballpark figure, though real-world sprint times also depend on factors a simple power-to-weight calculation cannot fully capture: gearing, drivetrain losses, tire grip and launch technique.

Car enthusiasts and reviewers use this kind of estimate to compare vehicles on paper before a real-world test, or to gauge roughly how a modification like an engine upgrade or a weight-reduction project might affect acceleration, since the relationship between power-to-weight and sprint time is consistent enough to be directionally useful even when it will not exactly match a stopwatch run at a track.

This calculator takes your engine power and vehicle weight and returns an estimated 0-100 km/h time, so you can get a quick, physics-based ballpark before relying on a manufacturer's claimed figure or a magazine test.