Torque Calculator Hp And Rpm

Torque Formula:

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

Torque (T):

Unit Converter ▲

Unit Converter ▼

From:	To:

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:

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

Where:

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

Explanation: The formula demonstrates that torque is inversely proportional to RPM when horsepower remains constant, and directly proportional to horsepower when RPM remains constant.

3. Importance of Torque Calculation

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

4. Using the Calculator

Tips: Enter horsepower in hp and 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 5252 used in the formula?
A: 5252 is derived from the conversion between foot-pounds per minute and horsepower (1 hp = 33,000 ft-lb/min ÷ 2π ≈ 5252).

Q2: What are typical torque values for engines?
A: Torque values vary widely by engine type and size. Automotive engines typically range from 100-500 lb-ft, while industrial engines can produce much higher torque.

Q3: How does torque relate to vehicle performance?
A: Higher torque at lower RPM generally provides better acceleration and towing capability, while high-RPM torque contributes to top speed performance.

Q4: Can this formula be used for electric motors?
A: Yes, the formula applies to any rotational power system, though electric motors often have different torque characteristics across their RPM range.

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.