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Torque Formula:
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The torque calculation formula \( T = \frac{HP \times 5252}{RPM} \) is used to calculate 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 fact that one horsepower is defined as 550 foot-pounds per second, and there are 60 seconds in a minute (550 × 60 ÷ 2π ≈ 5252).
Details: Torque calculation is essential for engine performance analysis, vehicle dynamics, mechanical design, and understanding the power characteristics of rotating machinery. It helps engineers optimize performance and efficiency.
Tips: Enter horsepower in hp and RPM in revolutions per minute. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is the constant 5252 used in the formula?
A: The constant 5252 is derived from the relationship between horsepower and torque, where 1 horsepower = 550 foot-pounds per second and there are 60 seconds in a minute (550 × 60 ÷ 2π ≈ 5252).
Q2: What are typical torque values for different engines?
A: Torque values vary significantly based on engine type. Small car engines might produce 100-200 lb-ft, while large diesel engines can produce over 1000 lb-ft of torque.
Q3: How does torque relate to vehicle performance?
A: Torque determines the pulling power and acceleration capability of a vehicle. Higher torque at lower RPM generally means better low-end acceleration and towing capacity.
Q4: Can this formula be used for electric motors?
A: Yes, the formula applies to any rotating machinery, including electric motors, but note that 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 work done over time. Horsepower = (Torque × RPM) ÷ 5252.