VoltFlow | NEC Art. 220 Service Load Calculator

01 General Dwelling Load

Dwelling area sq ft Small appliance circuits × 1500 VA Include laundry circuit (1500 VA)

02 Fixed Appliances

Fixed appliances are carried at 100% nameplate in this standard-method v1 calculator.

03 Cooking / Range

Range rating kW each Number of ranges units

04 Dryer

Dryer nameplate kW

05 HVAC + Largest Motor

A/C size tons A/C nameplate override kW Condenser FLA A Air handler FLA A Heating type Heating rating kW

Per 220.60, only the larger of cooling or heating is included.

Service Summary

Total Connected Load0 VA

Demand Load0 VA

Service Amps @ 240V0 A

Recommended Service100 A

Scope: 2023 NEC standard method, single-family dwelling only. References: 220.41, 220.42, 220.52(A/B), 220.54, 220.55, 220.60, 220.18(C)(1). Verify local amendments before anyone makes copper expensive.

Step-by-Step Calculation Breakdown

Description	Connected VA	Demand Factor	Demand VA