Torque Calculator Using Power And Rpm

Torque Formula:

\[ \tau = \frac{P \times 60}{2 \times \pi \times n} \]

Torque (τ):

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1. What is the Torque Formula?

The torque formula calculates rotational force from power and rotational speed. It's essential in mechanical engineering for determining the twisting force applied to an object.

2. How Does the Calculator Work?

The calculator uses the torque formula:

\[ \tau = \frac{P \times 60}{2 \times \pi \times n} \]

Where:

\( \tau \) — Torque (N·m)
\( P \) — Power (W)
\( n \) — Rotational speed (rpm)

Explanation: The formula converts power and rotational speed into torque, accounting for unit conversions between watts, rpm, and newton-meters.

3. Importance of Torque Calculation

Details: Torque calculation is crucial for designing mechanical systems, selecting motors, analyzing performance, and ensuring proper operation of rotating machinery.

4. Using the Calculator

Tips: Enter power in watts and rotational speed in rpm. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is 60 in the numerator?
A: The factor of 60 converts rotational speed from revolutions per minute to revolutions per second, aligning with the watt (joule per second) unit.

Q2: What are typical torque values?
A: Torque values vary widely depending on application - from small motors with fractions of N·m to industrial equipment with thousands of N·m.

Q3: Can I use different power units?
A: The calculator requires watts. Convert horsepower (1 hp = 745.7 W) or other units to watts before calculation.

Q4: What if RPM is zero?
A: RPM cannot be zero as it would cause division by zero. The calculator requires RPM > 0.

Q5: How accurate is this calculation?
A: The calculation provides theoretical torque. Actual torque may vary due to efficiency losses, friction, and other real-world factors.