Convert and calculate power-to-weight ratio using horsepower, kilowatts, pounds, kilograms, tons, and tonnes. Use this converter to compare cars, motorcycles, trucks, race builds, EVs, and performance vehicles.
Horsepower per pound:
hp/lb = horsepower ÷ pounds
Horsepower per US ton:
hp/ton = horsepower ÷ pounds × 2000
Pounds per horsepower:
lb/hp = pounds ÷ horsepower
kW per tonne:
kW/tonne = kilowatts ÷ metric tonnes
Power-to-weight conversions are useful for comparing sports cars, trucks, motorcycles, race cars, EVs, engine swaps, modified vehicles, towing builds, track cars, and performance specs.
Use this converter to compare performance potential, but remember that gearing, traction, aerodynamics, torque curve, and drivetrain losses also matter.
Your result shows the selected power-to-weight ratio from the power and weight entered. The converter also displays horsepower per pound, horsepower per US ton, pounds per horsepower, kilowatts per kilogram, kilowatts per metric tonne, and watts per kilogram.
Power-to-weight ratio is a helpful comparison number, but it does not guarantee real-world acceleration. Tires, traction, gearing, transmission, drivetrain layout, torque delivery, aerodynamics, elevation, and driver skill can change performance.
Divide power by weight. For example, horsepower per pound is horsepower divided by pounds.
Divide horsepower by vehicle weight in pounds, then multiply by 2,000.
Usually, yes. A higher power-to-weight ratio often means better acceleration potential.
Yes. Lower pounds per horsepower means each horsepower has less weight to move.
Use the same type for every comparison. Wheel horsepower is better for dyno-tested comparisons, while crank horsepower is common in manufacturer specs.