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Load calculator
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The dwelling
Dwelling units
The existing service
220.83 applies where load is being added to a dwelling that already has a service. Enter the existing dwelling below as you would a new one, then add the new load in the later steps. The checkbox above selects Table 220.83(A) or Table 220.83(B).
General lighting & receptacle load
Fixed appliances
Cooking equipment & dryer
Heating & air conditioning
EV, motors & other loads
The building
Lighting
Receptacle outlets
Commercial kitchen equipment
Motors
Other loads
Recorded maximum demand
Service & neutral
Based on the base 2023 NEC (NFPA 70). States and local jurisdictions amend it. Check your local amendments before relying on this.