AutoEngCalc - Engineering Calculators

Power-to-Weight Ratio

Calculate specific power in kW/kg, HP/ton, W/kg for vehicles, motors and machines. Compare with supercars, EVs, motorcycles and F1 cars.

Power-to-Weight
0.25 kW/kg
400 HP • 1600 kg vehicle

Specific Power Calculator

Featured: kW/kg • HP/ton • Vehicle Comparison

PWR Comparison

How your value compares

Formulas
PWR (kW/kg) = Power (kW) / Mass (kg)
PWR (HP/ton) = Power (HP) / Mass (metric ton)
Specific Power (W/kg) = Power (W) / Mass (kg)

Enter power and weight to calculate

Power-to-Weight Benchmarks

Vehicles

Economy car: 50–80 HP/ton

Sports car: 150–250 HP/ton

Supercar: 300–500 HP/ton

F1 car: ~1000 HP/ton

Motorcycles & EVs

Sport bike: 300–400 HP/ton

Superbike: 500+ HP/ton

Tesla Plaid: ~400 HP/ton

Rimac Nevera: ~1000 HP/ton

Footer - AutoEngCalc