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Mechanical & performance
Power-to-Weight Ratio Calculator
Enter power and weight to get the ratio in kW/kg and hp per tonne.
Formula
kW/kg ratio = Power (kW) / Vehicle weight (kg) (kg)
Assumptions
Enter power and weight to get the ratio in kW/kg and hp per tonne.
How to read it
The higher the kW/kg ratio, the livelier the car. Reference points: a city car sits near 0.05 kW/kg, a hot hatch around 0.12, a supercar above 0.30.