Power-to-Weight Ratio Calculator

Your details

Vehicle mode expects horsepower and vehicle weight. Cycling mode expects watts (FTP or peak) and body weight in kg.
Enter the power output of the engine, motor, or athlete.
hp = SAE / imperial horsepower. PS = metric horsepower (1 PS = 0.986 hp).
Vehicle kerb weight, or body weight for cycling mode.
Watts per kilogramPerformance
106.53W/kg

The universal power-to-weight ratio used in cycling and aviation.

Kilowatts per tonne106.53kW/t
Horsepower per kilogram0.143hp/kg
Horsepower per pound0.0648hp/lb
Horsepower per ton142.86hp/ton
Performance categoryPerformance / Hot Hatch
LAMS / P-Plater eligibleYes - eligible (<=130 kW/t)
106.53 W/kg
Economy<50Sporty50-100Performance100-175Sports Car175-250Supercar250-400Hypercar400+

Power-to-weight ratio: 106.5 W/kg

  • 106.5 W/kg (106.5 kW/t, 0.0648 hp/lb).
  • This puts it in the "Performance / Hot Hatch" category.
  • The ratio is within the 130 kW/t threshold used by most Australian states for P-plate and LAMS motorcycle eligibility.
  • To improve the ratio, you can increase power (engine tuning, forced induction) or reduce weight (lightweight wheels, stripping interior) - both move the number equally.

Next stepUse the unit outputs above to compare directly with published specs from manufacturers or racing homologation documents.

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