Horsepower Calculator
Calculate engine horsepower from torque and RPM, or convert between HP, kW, and PS. Estimate quarter-mile time and trap speed.
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What this calculator does
Horsepower Calculator helps you quickly estimate calculate engine horsepower from torque and rpm, or convert between hp, kw, and ps. estimate quarter-mile time and trap speed. with clean output and clear next steps.
How the calculation works
Enter Calculate, Torque, Engine RPM and this calculator uses standard formulas to determine Horsepower (HP) and Kilowatts (kW). The output is displayed immediately in a user-friendly format.
Example calculation
For example, enter realistic values into the Horsepower Calculator to see how the calculator produces Horsepower (HP) and Kilowatts (kW) that you can use for planning and comparison.
Disclaimer
The calculations provided by this website are for informational purposes only and should not be considered financial, legal, tax, or professional advice.
Frequently Asked Questions
What is the horsepower formula?
HP = (Torque × RPM) / 5252. The constant 5252 comes from converting foot-pounds and RPM to consistent units.