1. What is an Electric HP to Watts Calculator?

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

Purpose: It helps engineers, electricians, and technicians convert between these common power measurement units.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

Explanation: 1 electric horsepower is exactly equal to 746 watts by definition.

3. Importance of Power Unit Conversion

Details: Accurate conversion between HP and watts is essential for electrical system design, motor specifications, and energy calculations.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 746?
A: This is the exact definition of electric horsepower - 1 HP = 746 W by international agreement.

Q2: Is this the same for mechanical horsepower?
A: No, mechanical horsepower is slightly different (1 HP ≈ 745.7 W), but this calculator uses electric HP.

Q3: How precise is this conversion?
A: The conversion is exact with no rounding, as 746 watts per HP is the defined standard.

Q4: When would I need this conversion?
A: When working with motor specifications, electrical load calculations, or comparing power ratings.

Q5: Can I convert watts back to HP?
A: Yes, simply divide watts by 746 to get horsepower.