Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Automotive
Horsepower from Torque Calculator
Calculate horsepower from torque (in lb-ft) and engine RPM using the classic HP = (torque Γ RPM) / 5252 formula. Use it to convert between dyno-measured torque curves and the more familiar horsepower figures that car spec sheets quote.
Fill in the required fields to see your result.
Automotive
Engine Displacement Calculator
Calculate an engine's total displacement in cubic centimeters (cc) from the bore diameter, stroke length, and number of cylinders. Use it to size an engine's output potential, classify it for motorsport regulations, or compare engines across manufacturers using a standard volume metric.
Fill in the required fields to see your result.
Key differences
| Horsepower from Torque Calculator | Engine Displacement Calculator | |
|---|---|---|
| Category | Automotive | Automotive |
| Inputs required | 2 | 3 |
| Result | Horsepower (HP) | Engine Displacement (cc) |
| What it does | Calculate horsepower from torque (in lb-ft) and engine RPM using the classic HP = (torque Γ RPM) / 5252 formula. Use it to convert between dyno-measured torque curves and the more familiar horsepower figures that car spec sheets quote. | Calculate an engine's total displacement in cubic centimeters (cc) from the bore diameter, stroke length, and number of cylinders. Use it to size an engine's output potential, classify it for motorsport regulations, or compare engines across manufacturers using a standard volume metric. |