Residential Load Calculator
NEC Article 220 - Standard Calculation Method
Step 1: General Information
Step 2: Appliances & Loads
Electric Range / Oven
W
Electric Dryer
W
Water Heater (Electric)
W
Central A/C
W
Electric Heat
W
Heat Pump
W
EV Charger (Level 2)
W
Hot Tub / Spa
W
Pool Pump
W
Dishwasher
W
Garbage Disposal
W
Microwave
W
Washer
W
Additional Load (Custom)
W
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Total Calculated Load (Amps)
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Load Breakdown
NEC References
Standard Calculation Method - NEC Article 220, Part III
- General Lighting: 3 VA/sq ft (NEC 220.12)
- Small Appliance Circuits: 1,500 VA each, min 2 (NEC 220.52(A))
- Laundry Circuit: 1,500 VA (NEC 220.52(B))
- General Load Demand: First 3,000 VA at 100%, remainder at 35% (Table 220.42)
- Fixed Appliances: 75% demand if 4 or more (NEC 220.53)
- Dryer: 5,000 VA or nameplate, whichever is larger (NEC 220.54)
- Range: Table 220.55 - 8 kW demand for up to 12 kW nameplate
- HVAC: Largest of heating or cooling, not both (NEC 220.60)
- EV Charger: 100% of nameplate (NEC 625.41)
- General Lighting: 3 VA/sq ft (NEC 220.12)
- Small Appliance Circuits: 1,500 VA each, min 2 (NEC 220.52(A))
- Laundry Circuit: 1,500 VA (NEC 220.52(B))
- General Load Demand: First 3,000 VA at 100%, remainder at 35% (Table 220.42)
- Fixed Appliances: 75% demand if 4 or more (NEC 220.53)
- Dryer: 5,000 VA or nameplate, whichever is larger (NEC 220.54)
- Range: Table 220.55 - 8 kW demand for up to 12 kW nameplate
- HVAC: Largest of heating or cooling, not both (NEC 220.60)
- EV Charger: 100% of nameplate (NEC 625.41)
Built for electricians. Based on NEC Article 220 Standard Method.
Always verify calculations with local AHJ requirements.
Always verify calculations with local AHJ requirements.