1. What is the Torque Formula?

The torque formula T = (HP × 5252) / RPM calculates torque from horsepower and RPM. This formula is derived from the fundamental relationship between power, torque, and rotational speed in mechanical systems.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (lb-ft)
• \( HP \) — Horsepower (hp)
• \( RPM \) — Revolutions per minute (rpm)
• 5252 — Conversion constant derived from the relationship between power and rotational speed

Explanation: The constant 5252 comes from the conversion between different units of power and rotational speed, making the formula work with horsepower and RPM inputs.

3. Importance of Torque Calculation

Details: Torque calculation is essential for understanding engine performance, mechanical system design, and power transmission efficiency in various applications.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the constant 5252 used in the formula?
A: The constant 5252 comes from the conversion between different units of power and rotational speed, specifically relating horsepower, torque, and RPM.

Q2: What are typical torque values for different engines?
A: Torque values vary significantly based on engine type and size. Small car engines might produce 100-200 lb-ft, while large diesel engines can produce over 1000 lb-ft.

Q3: How does torque relate to vehicle performance?
A: Torque determines a vehicle's acceleration and pulling power. Higher torque generally means better acceleration and towing capacity.

Q4: Can this formula be used for electric motors?
A: Yes, the same formula applies to electric motors, though the power characteristics may differ from internal combustion engines.

Q5: What's the difference between torque and horsepower?
A: Torque is a measure of rotational force, while horsepower is a measure of power (work done over time). Horsepower = (Torque × RPM) / 5252.