1. What is a Generator Wattage Calculator?

Definition: This calculator estimates the total wattage needed for a generator based on the running watts and starting watts of your equipment.

Purpose: It helps homeowners and professionals determine the appropriate generator size for their power needs.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Total\ Watts \) — Total generator capacity needed (watts)
• \( Running\ Watts \) — Continuous power required (watts)
• \( Starting\ Watts \) — Extra power needed for startup (watts)

Explanation: The running watts represent continuous power draw, while starting watts account for the temporary surge when equipment starts.

3. Importance of Proper Wattage Calculation

Details: Accurate wattage calculation ensures your generator can handle all connected equipment without overload while being appropriately sized for efficiency.

4. Using the Calculator

Tips: Enter the running watts (continuous power needs) and starting watts (surge power needs) for your equipment. All values must be ≥ 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between running and starting watts?
A: Running watts are continuous power needs, while starting watts are the extra power needed only during startup (typically 2-3x running watts).

Q2: How do I find my equipment's wattage requirements?
A: Check manufacturer labels or manuals. Running watts are often listed as "rated watts" and starting watts as "surge watts."

Q3: Should I add a safety margin?
A: Yes, it's recommended to add 10-20% to the calculated total wattage for safety and future expansion.

Q4: What if I have multiple appliances?
A: Sum the running watts of all appliances you'll run simultaneously, then add the highest starting watts (since not all appliances start at once).

Q5: Does this account for power factor?
A: This simple calculator assumes pure resistive loads. For reactive loads (motors, compressors), consult a professional for accurate calculations.