1. What is the Torque vs Horsepower Calculator?

Definition: This calculator determines the torque produced by an electric motor based on its horsepower and RPM.

Purpose: It helps engineers, technicians, and motor enthusiasts understand the relationship between these key motor performance parameters.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( T \) — Torque (pound-feet)
• \( HP \) — Horsepower
• \( RPM \) — Revolutions per minute

Explanation: The constant 5252 comes from the conversion between rotational speed and power units (1 horsepower = 550 ft-lb/sec).

3. Importance of Torque Calculation

Details: Torque determines a motor's ability to perform work and is crucial for selecting motors for specific applications.

4. Using the Calculator

Tips: Enter the motor's horsepower and RPM values. Both must be greater than zero for calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is torque important for electric motors?
A: Torque determines the motor's ability to overcome resistance and perform work, especially important for starting loads.

Q2: What's the significance of 5252 in the formula?
A: This constant comes from unit conversion (1 HP = 550 ft-lb/sec) and the relationship between RPM and angular velocity.

Q3: How does RPM affect torque?
A: For a given horsepower, torque decreases as RPM increases, and vice versa.

Q4: What's typical torque for a 1 HP motor at 1725 RPM?
A: About 3.04 lb-ft (1 × 5252 ÷ 1725).

Q5: Can I use this for internal combustion engines?
A: Yes, the formula applies to any rotating machinery, though engine torque typically varies across the RPM range.