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Torque Formula:
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The torque formula \( T = \frac{HP \times 5252}{RPM} \) calculates torque from horsepower and RPM. This formula is fundamental in mechanical engineering and automotive applications for determining the rotational force produced by an engine or motor.
The calculator uses the torque formula:
Where:
Explanation: The constant 5252 comes from the relationship between horsepower, torque, and RPM, where 1 horsepower is defined as 550 foot-pounds per second, and there are 60 seconds in a minute and 2π radians in a revolution.
Details: Accurate torque calculation is crucial for engine performance analysis, vehicle design, mechanical system optimization, and understanding the power characteristics of rotating machinery.
Tips: Enter horsepower in hp and RPM in revolutions per minute. All values must be valid (HP > 0, RPM > 0).
Q1: Why is the constant 5252 used in the formula?
A: The constant 5252 comes from the conversion between different units of measurement. It's derived from the fact that 1 horsepower equals 550 foot-pounds per second and there are 60 seconds in a minute and 2π radians in a revolution.
Q2: What are typical torque values for different engines?
A: Torque values vary significantly depending on the engine type. Small car engines might produce 100-200 lb-ft, while large diesel truck engines can produce over 1000 lb-ft of torque.
Q3: How does torque relate to vehicle performance?
A: Torque determines a vehicle's acceleration and pulling power. Higher torque at lower RPMs generally means better low-speed acceleration and towing capability.
Q4: Can this formula be used for electric motors?
A: Yes, the formula works for any rotating machinery, including electric motors, though electric motors often have different torque characteristics than internal combustion engines.
Q5: What's the difference between torque and horsepower?
A: Torque is a measure of rotational force, while horsepower is a measure of power (work done over time). Horsepower = (Torque × RPM) / 5252.