Electrical Calculator

Calculate electrical loads, wire sizing, circuit requirements, and panel capacity

Electrical Load Analysis

Calculation Type

Enter electrical specifications to calculate requirements

General Purpose: 15A, 120V
3 watts per sq ft minimum

Kitchen/Bathroom: 20A, 120V
GFCI protection required

Large Appliances: 30A, 240V
Dedicated circuits

14 AWG: 15A maximum
General lighting circuits

12 AWG: 20A maximum
Kitchen and bathroom circuits

10 AWG: 30A maximum
Large appliances

100A Panel: Small homes
Up to 1,500 sq ft

200A Panel: Standard homes
Most residential applications

400A Panel: Large homes
Over 3,000 sq ft