1. What is Horsepower to Power Conversion?

Definition: This calculator converts mechanical power from horsepower (HP) to electrical power in watts (W).

Purpose: It helps engineers, electricians, and technicians compare mechanical and electrical power systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P_w \) — Power in watts (W)
• \( HP \) — Power in horsepower

Explanation: One mechanical horsepower equals exactly 746 watts by definition.

3. Importance of Power Conversion

Details: Accurate conversion between units ensures proper equipment sizing and compatibility between mechanical and electrical systems.

4. Using the Calculator

Tips: Simply enter the horsepower value (must be > 0) and the calculator will show the equivalent power in watts.

5. Frequently Asked Questions (FAQ)

Q1: Why 746 watts per horsepower?
A: This conversion factor was established by James Watt's experiments with draft horses and represents the mechanical equivalent of electrical power.

Q2: Is this for mechanical or electrical horsepower?
A: This uses mechanical horsepower (1 HP = 746 W). Metric horsepower is slightly different (1 HP = 735.5 W).

Q3: Can I convert watts back to horsepower?
A: Yes, divide watts by 746 to get horsepower (HP = W / 746).

Q4: What about brake horsepower (BHP)?
A: Brake horsepower is typically about 1-2% higher than standard horsepower due to measurement differences.

Q5: How precise is this conversion?
A: The 746 watts/HP is an exact conversion factor, not an approximation.