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Horsepower Per Ton Formula:
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Horsepower per ton (HP/Ton) is a performance metric that measures a vehicle's power-to-weight ratio. It indicates how much power is available to move each ton of the vehicle's weight, directly correlating with acceleration and performance potential.
The calculator uses the HP per ton formula:
Where:
Explanation: The formula converts weight from pounds to tons (by dividing by 2000) and then divides horsepower by this value to get horsepower per ton.
Details: HP/Ton is a key performance indicator in automotive engineering and racing. Higher values generally mean better acceleration and performance. Typical values range from 50 hp/ton for economy cars to over 1000 hp/ton for top-fuel dragsters.
Tips: Enter horsepower in hp and weight in pounds. Both values must be positive numbers. For accurate results, use the vehicle's actual measured weight (curb weight or race weight) rather than manufacturer's specifications.
Q1: What's a good HP/Ton ratio for a sports car?
A: Performance sports cars typically have 150-300 hp/ton. Supercars often exceed 400 hp/ton.
Q2: How does HP/Ton relate to 0-60 mph times?
A: While not the only factor, higher HP/Ton generally correlates with faster acceleration, though traction, gearing, and drivetrain also play significant roles.
Q3: Should I use curb weight or gross weight?
A: For performance calculations, use curb weight (vehicle + fluids) plus driver/passenger weight for most accurate results.
Q4: How does HP/Ton compare to power-to-weight in kg?
A: To convert hp/ton to hp/kg, divide by 907.185 (since 1 ton = 907.185 kg). For metric calculations, weight is often expressed in kg and power in kW.
Q5: What's the HP/Ton of Formula 1 cars?
A: Modern F1 cars typically have about 1300 hp/ton when considering their minimum weight limit and hybrid power units.