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Torque Calculator

Torque Formula:

\[ T = \frac{HP \times 5252}{RPM} \]

HP
rev/min

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1. What is Torque?

Torque is a measure of the rotational force applied to an object. In automotive and mechanical engineering contexts, torque represents the twisting force that causes rotation, typically measured in pound-feet (lb-ft) or Newton-meters (N·m).

2. How Does the Calculator Work?

The calculator uses the torque formula:

\[ T = \frac{HP \times 5252}{RPM} \]

Where:

Explanation: The constant 5252 is derived from the relationship between horsepower, torque, and RPM. This formula allows you to calculate torque when you know the horsepower and RPM values.

3. Importance of Torque Calculation

Details: Torque calculation is essential for engine performance analysis, vehicle dynamics, mechanical design, and understanding the power characteristics of rotating machinery. Higher torque values generally indicate better acceleration and towing capability.

4. Using the Calculator

Tips: Enter horsepower and RPM values. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is 5252 used in the torque formula?
A: The number 5252 comes from the relationship between horsepower, torque, and RPM. It's derived from the conversion factors between different units of measurement in the horsepower definition.

Q2: What's the difference between horsepower and torque?
A: Horsepower measures the rate of doing work (power), while torque measures rotational force. Horsepower = (Torque × RPM) / 5252.

Q3: At what RPM does horsepower equal torque?
A: Horsepower and torque values are equal at 5252 RPM due to the mathematical relationship in the formula.

Q4: Can I use this formula for electric motors?
A: Yes, the formula works for any rotating machinery, including electric motors, as long as you have accurate horsepower and RPM values.

Q5: How does torque affect vehicle performance?
A: Higher torque generally means better acceleration from a standstill and improved towing capacity, while horsepower affects top speed and sustained performance.

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