Electrical Load Calculator
Calculate total electrical load by circuit type and determine the service panel size and main breaker needed.
Inputs
W
W
W
W
Results
Total Connected Load
29,000 W
Total Amps (240V)120.8 A
NEC Demand Load17,600 W
Demand Amps (240V)73.3 A
Panel Size100 A
Main Breaker100 A
Total Circuits16
How to Use This Calculator
- Enter the number of Lighting Circuits and Watts per Lighting Circuit.
- Add Outlet Circuits and Watts per Outlet Circuit.
- Enter Appliance Circuits and Watts per Appliance Circuit.
- Add HVAC Circuits and their wattage.
- Review the Total Load (amps) to size the service panel or subpanel required.
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