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Torque Formula:
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The torque formula calculates the rotational force produced by an engine or motor based on its horsepower and RPM. It is commonly used in automotive and mechanical engineering to evaluate engine performance.
The calculator uses the torque formula:
Where:
Explanation: The constant 5252 is derived from the relationship between horsepower, torque, and RPM, where horsepower and torque are equal at 5252 RPM in the imperial system.
Details: Torque is a critical measurement for understanding an engine's ability to perform work. It indicates the rotational force available at a given RPM, which is essential for vehicle acceleration, towing capacity, and overall engine efficiency.
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 torque formula?
A: The number 5252 comes from the conversion between horsepower and torque, where 1 horsepower is defined as 550 foot-pounds per second, and there are 5252 RPM in a radian per second conversion.
Q2: What is a typical torque value for engines?
A: Torque values vary significantly depending on the engine type. Small car engines might produce 100-200 lb-ft, while diesel truck engines can produce over 1000 lb-ft of torque.
Q3: How does torque relate to vehicle performance?
A: Higher torque generally means better acceleration and towing capability. Torque is particularly important at lower RPMs for quick response and pulling power.
Q4: Can this formula be used for electric motors?
A: Yes, the formula works for both internal combustion engines and electric motors, as it calculates torque from power and rotational speed regardless of the power source.
Q5: What are the units for torque in this calculation?
A: This calculator provides results in pound-feet (lb-ft), which is the standard imperial unit for torque measurement.