Home Electrical Load Calculator | Power Upgrade Guide
Use our home electrical load calculator to estimate kW usage and see if you need a supply or switchboard upgrade.
⚡ Home Electrical Load Calculator
Estimate your household power load and see if an electrical upgrade may be needed. Enter your home details below.
Large Appliances
Power Points & Lighting
Home Size
Enter details above to see your load and upgrade advice.
⚠️ This is a general estimate only. Always confirm with a licensed electrician for exact load and upgrade requirements.
💡 How It Works
- Enter your large appliances
Add the number of high‑demand appliances like air‑cons, ovens, dryers or EV chargers. - Enter standard power points and lighting circuits
Input how many power points and lighting circuits your home has. - Select your home size
Choose from small unit, 3‑bed house or large home. - Click “Calculate Electrical Load”
The tool instantly estimates your total electrical load in kW. - Check upgrade advice and costs
See if your current supply is sufficient and view typical upgrade cost ranges.
✨ This tool gives general guidance. Always confirm with a licensed electrician for exact requirements and pricing.
⚠️ General Disclaimer
The information and tools provided on this website are for general guidance and informational purposes only. While we strive to ensure accuracy and usefulness, all content is provided “as is” without any guarantees. We make no representations or warranties about the completeness, reliability, or suitability of this information for your specific situation.
You acknowledge that any actions you take based on information from this website are at your own risk. We recommend seeking independent professional advice before making decisions or purchases. To the fullest extent permitted by law, we disclaim all liability for any loss, damage, or expenses arising from the use or reliance on our content or tools.