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Estimated load calculator for retrofitsBeta

NEC 220.82 & 220.83


Address

Automatically add property data


General load

Qty.

VA

Total

Structure

ft²

3

0

Small appliance circuits

1,500

3,000

Laundry circuits

1,500

1,500

Total: 4,500 VA

HVAC

Heating

Qty.

VA

Total

Electric space heater - 1,500 W (12.5A at 120V)

1,500

0

Heat pump / Furnace - 6,000 W (25A at 240V)

6,000

0

Total: 0 VA

Cooling

Qty.

VA

Total

Air conditioner - 4,000 W (16.7A at 240V)

4,000

0

Total: 0 VA

Other electrical load

Qty.

VA

Total

Bath / laundry fan - 50 W (0.4A at 120V)

50

150

Dishwasher - 1,200 W (10A at 120V)

1,200

1,200

Disposal - 600 W (5A at 120V). < 0.75hp

600

600

Dryer - 4,500 W (18.8A at 240V)

4,500

4,500

Garage door opener - 300 W (2.5A at 120V). < 0.5hp

300

300

Microwave - 900 W (7.5A at 120V)

900

900

Pool pump - 1,800 W (15A at 120V). < 2.5hp

1,800

0

Range / Oven - Electric - 8,000 W (33.3A at 240V)

8,000

0

Range / Oven - Gas - 600 W (5A at 120V)

600

600

Range hood - 600 W (5A at 120V)

600

600

Refrigerator - 900 W (7.5A at 120V)

900

0

Spa/hot tub - 7,000 W (29.2A at 240V)

7,000

0

Water heater - Electric - 4,500 W (18.8A at 240V)

4,500

0

Well pump - 900 W (7.5A at 120V). < 1.25hp

900

0

Total: 8,850 VA

EV charging

Qty.

VA

Total

EV charger - 9,600VA (32A at 240V x 125%)

9,600

9,600

Total: 9,600 VA


Final calculation

First

VA

at

%

8,000 VA

Remaining load at

%

2,140 VA

HVAC load

0 VA

Calculated according to 220.82(C)

EV charging load at

%

9,600 VA

Total calculated load

19,740 VA


Calculated amperage (load / 240V)

82 A



The default values are drawn from "Optional Feeder and Service Load Calculations" of the 2017, 2020, and 2023 NEC, Sections 220.82 and 220.83. This load calculation worksheet is provided for informational purposes only. It is the sole responsibility of the electrician preparing the calculation to verify and ensure both correctness and compliance with local regulations.Privacy Policy & Terms