Tool category

Electrical tools

Practical circuit, wiring, battery and component sizing calculators.

11 tools

Available calculators

Estimate voltage loss across cable runs.

Calculate voltage, current, resistance and power.

Estimate useful runtime from capacity and load.

Size a series resistor and wattage for an LED string.

Calculate equivalent resistance for series and parallel networks.

Calculate conductor resistance and optional voltage drop from area or AWG.

Calculate ideal RC capacitor voltage, charge and current over time.

Calculate RC timing and response percentages from 1τ to 5τ.

Calculate ideal transformer voltage, turns and current ratios.

Calculate single-phase apparent, real and reactive power.

Estimate current requirement and the next common fuse rating.

Estimate demand, conductor behaviour, voltage loss and an appropriate fuse starting point.

Work from basic circuit values through resistor, LED and RC component behaviour.

Relate ideal transformer ratios to voltage, current, apparent power and power factor.