Electrical Load Calculator — Calculate Your Home’s Power Requirements

Electrical Load Calculator

Calculate your home’s electrical load to determine power requirements, circuit needs, and ensure electrical safety. Perfect for homeowners and electricians.

Step 1: Electrical Details

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Understanding Electrical Load

Electrical load calculation helps determine the power requirements of your home. This is essential for sizing electrical panels, circuits, and ensuring your electrical system can handle all your appliances safely without overloading.

Step 2: Additional Options

About Electrical Load

The National Electrical Code (NEC) provides guidelines for calculating electrical loads. A typical residential calculation includes general lighting, small appliance circuits, laundry circuits, and fixed appliances. Always consult a licensed electrician for professional assessment.

Electrical Load Results

Summary
Load Comparison
Breakdown

Total Estimated Electrical Load

45 Amps
Based on 2000 sq ft with 15% appliance load
Base Load
30 Amps
Appliance Load
15 Amps
Total Load
45 Amps
With Safety Margin
54 Amps

Electrical Load Comparison

Home Size (sq ft) Typical Load Recommended Panel Circuit Count

Load Breakdown

Load Calculation Formula

Total Load = (Square Footage × 3VA) + (Appliance Load Percentage × Square Footage × 3VA)

To calculate electrical load, multiply square footage by 3VA (volt-amperes) for general lighting, then add appliance load. For example: 2000 sq ft with 15% appliance load = (2000 × 3) + (0.15 × 2000 × 3) = 6000VA + 900VA = 6900VA. At 120V, this equals 57.5A.

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