1. What is the Torque Formula?

The torque formula calculates rotational force from horsepower and RPM. It provides a fundamental relationship between power, rotational speed, and torque in mechanical systems.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (lb-ft)
• \( HP \) — Horsepower (hp)
• \( RPM \) — Rotations per minute (rpm)
• 5252 — Conversion constant

Explanation: The formula demonstrates the inverse relationship between torque and RPM for a given horsepower output.

3. Importance of Torque Calculation

Details: Accurate torque calculation is crucial for engine performance analysis, mechanical design, power transmission systems, and automotive engineering applications.

4. Using the Calculator

Tips: Enter horsepower in hp and RPM in rotations per minute. All values must be valid (HP > 0, RPM > 0).

5. Frequently Asked Questions (FAQ)

Q1: Why is 5252 used in the formula?
A: 5252 is the conversion constant that results from the relationship between horsepower, torque, and RPM in the imperial measurement system.

Q2: What are typical torque values for engines?
A: Torque values vary widely by engine type and size, ranging from under 100 lb-ft for small engines to over 1000 lb-ft for large diesel engines.

Q3: How does torque relate to vehicle performance?
A: Higher torque at lower RPM generally provides better acceleration and towing capacity, while horsepower relates more to top speed.

Q4: Can this formula be used for electric motors?
A: Yes, the formula applies to any rotating mechanical system, including electric motors, though specific motor characteristics may affect actual performance.

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.