Electrical Load and MCB Calculator
Count your lights, fans, sockets and big appliances. Get the circuits, each MCB, the wire and the connected load.
ElectricalOpen Calculator
Electrical Calculators
Load and circuits, MCB rating, wire size, inverter and battery.
About our electrical calculators
Electrical sizing is the one area where a wrong estimate is a safety issue rather than a budget issue. Undersized cable overheats; an undersized inverter dies early. These calculators follow the CPWD electrical specifications and the IS codes for circuits, derating and voltage drop, and show the working so an electrician can check it.