Other Calculators

Horsepower Calculator | Calculate Your Vehicle's Power

Horsepower Calculator | Calculate Your Vehicle's Power

Horsepower Calculator | Calculate Your Vehicle's Power

Horsepower Calculator

Calculate your vehicle's horsepower based on weight and quarter-mile time. Accurate, fast, and completely free!

Vehicle Weight

Quarter-mile Time

Calculation Result

-- HP

Average Car

120-180 HP

Sports Car

300-500 HP

Supercar

500-800 HP

Hypercar

800+ HP

Frequently Asked Questions

How accurate is the horsepower calculator?

Our calculator uses proven physics formulas to estimate horsepower. It's highly accurate for rear-wheel drive vehicles but may have slight variations for all-wheel or front-wheel drive cars due to drivetrain losses.

What measurements do I need to calculate horsepower?

You need two measurements: your vehicle's weight (including driver and fuel) and your quarter-mile elapsed time. Both should be as accurate as possible for best results.

Can I use metric measurements?

Yes, our calculator supports both imperial (lbs, seconds) and metric (kg, seconds) units. Simply select your preferred unit system.

Why is my calculated horsepower different than manufacturer specs?

Manufacturers typically report brake horsepower (engine output), while our calculator estimates wheel horsepower (power reaching the wheels). There's typically a 10-20% difference due to drivetrain losses.

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