Home
Back
Torque Formula:
| From: | To: |
The torque formula calculates rotational force from horsepower and RPM. It provides a fundamental relationship between power, rotational speed, and torque in mechanical systems.
The calculator uses the torque formula:
Where:
Explanation: The formula demonstrates that torque is inversely proportional to RPM when horsepower remains constant, and directly proportional to horsepower when RPM remains constant.
Details: Accurate torque calculation is crucial for engine performance analysis, mechanical design, automotive engineering, and understanding power transmission systems.
Tips: Enter horsepower and RPM values. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is 5252 used in the formula?
A: 5252 is derived from the conversion between horsepower, torque, and RPM. It comes from the relationship where 1 horsepower equals 550 foot-pounds per second and the conversion from minutes to seconds and radians.
Q2: What are typical torque values for engines?
A: Torque values vary significantly by engine type and size. Automotive engines typically range from 100-500 lb-ft, while industrial engines can produce much higher torque values.
Q3: How does torque relate to vehicle performance?
A: Torque determines a vehicle's acceleration and pulling power. Higher torque at lower RPM generally provides better low-end acceleration and towing capability.
Q4: Can this formula be used for electric motors?
A: Yes, the formula applies to electric motors as well, though electric motors typically have different torque characteristics than internal combustion engines.
Q5: What units does this calculator use?
A: This calculator uses horsepower (HP) for power and lb-ft (pound-feet) for torque, which are standard units in the imperial system.