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Horsepower Calculator – Calculates horsepower from torque and RPM, or f...

The Horsepower Calculator calculates horsepower from torque and RPM, or from work done over time. This Horsepower Calculator calculates the result from the standard formula used in vehicle performance, fuel economy, and trip planning calculations.

The formula behind this calculator: Horsepower = (torque x RPM) / 5,252. As a practical example: 200 lb-ft of torque at 4,000 RPM equals about 152 horsepower. All results are calculated instantly in your browser — no data is stored or transmitted.

Horsepower Calculator FAQ

What does the Horsepower Calculator calculate?

Calculates horsepower from torque and RPM, or from work done over time.

Do results account for real-world driving conditions?

No — base calculations use ideal conditions. Traffic, hills, driving style, and weather all affect real-world fuel economy and travel time.

How do I convert MPG to L/100km?

Divide 235.214 by MPG to get L/100km. For example, 30 MPG = 7.84 L/100km.

Is this calculator free?

Yes — all CalcHive calculators are free with no sign-up, no account, and no usage limits.