1. What is Torque Calculation From Power And Rpm?

Torque calculation from power and RPM is a fundamental mechanical engineering calculation that determines the rotational force produced by a motor or engine based on its power output and rotational speed.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( P \) — Power (W)
• \( RPM \) — Rotations per minute (rev/min)
• \( \pi \) — Mathematical constant pi (approximately 3.14159)

Explanation: The formula converts power and rotational speed into torque, accounting for the relationship between rotational work and force.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for mechanical design, motor selection, power transmission system design, and performance analysis of rotating machinery.

4. Using the Calculator

Tips: Enter power in watts, RPM in revolutions per minute. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a 60 in the numerator?
A: The factor of 60 converts power from watts (joules/second) to match the RPM unit (revolutions per minute).

Q2: Can I use different power units?
A: The calculator requires power input in watts. Convert horsepower or other units to watts first (1 HP = 745.7 W).

Q3: What is the relationship between torque, power, and RPM?
A: Torque is inversely proportional to RPM for a given power output. Higher RPM means lower torque, and vice versa.

Q4: Are there limitations to this calculation?
A: This formula assumes constant power output and doesn't account for efficiency losses, friction, or variable operating conditions.

Q5: How accurate is this calculation for real-world applications?
A: While theoretically accurate, real-world applications should consider efficiency factors and mechanical losses for precise torque requirements.