4 calculators
Electrical & Lighting
Voltage drop, Ohm’s law, energy, lighting.
Voltage Drop CalculatorDrop for a cable run, and the smallest size that passesOhm’s Law & Watts CalculatorVolts, amps, ohms and watts from any twoElectricity Cost CalculatorRunning cost of an appliance or toolDownlight CalculatorHow many lights for a room, and spacing