1. What is a Generator Wattage Calculator?

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

Purpose: It helps homeowners and professionals select the properly sized generator for their 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 motor startup (watts)

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

3. Importance of Proper Generator Sizing

Details: Correct wattage calculation prevents generator overload, ensures reliable operation, and protects connected equipment.

4. Using the Calculator

Tips: Enter the running watts (continuous power needs) and starting watts (highest startup surge). 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 briefly when motors start (typically 2-3x running watts).

Q2: How do I find my equipment's wattage requirements?
A: Check appliance labels, manuals, or use our Appliance Wattage Calculator.

Q3: Should I add a safety margin?
A: Yes, we recommend adding 10-20% to the calculated total for safety and future expansion.

Q4: What if I have multiple appliances?
A: Add all running watts together, and use the highest starting watts (not all appliances start simultaneously).

Q5: Does this work for whole-house generators?
A: Yes, but professional load calculation is recommended for whole-house systems.