Electrical Panel Load Calculator -

Can Your Electrical Panel Handle Your Home’s Load?

Answer a few questions and get an estimated dwelling service load. Exact appliance ratings give the best result.

Planning tool only. This calculator estimates load using the NEC dwelling optional-method framework. It does not approve an installation or replace the adopted electrical code, local amendments, permits, inspections, or a qualified electrician/AHJ.

1Your home

Home size Finished/adaptable dwelling floor area in square feet. Electrical service

2Major electric appliances

Turn on only the appliances you have. For accuracy, enter the rating from the appliance nameplate. Watts may be entered as VA for this planning estimator.

Electric range / cooktop / ovens

Nameplate rating (VA or W)

Electric clothes dryer

Nameplate rating (VA or W)

Electric water heater

Nameplate rating (VA or W)

Dishwasher

Nameplate rating (VA or W)

Garbage disposal

Nameplate rating (VA or W)

Other fixed electrical loads

Other fixed appliances (VA) Other permanently connected motors (VA)

3Heating & cooling

What type of system do you have?

Cooling / heat-pump rating (VA or W) Electric / backup heat rating (VA or W)

4EV charger

Include an EV charger?

Advanced settings

NEC edition Use the edition actually adopted in your jurisdiction. Dwelling service voltage

Small-appliance circuits Laundry circuits

Estimated calculated service load

— A

Compared with your selected service rating

Ready

Your service—

Total estimated load—

Arithmetic difference—

What this means

Enter your home’s information to see an estimate.

Show detailed NEC calculation

Lighting basis—

General connected load—

General load after demand factor—

HVAC demand—

EVSE value—

Important: This does not calculate neutral load, conductor sizes, breaker sizes, EVSE branch-circuit/OCPD sizing, PCS/EVEMS load management, local amendments, or utility requirements. A positive difference does not mean a new load is automatically permitted.