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Electrical Calculators

Browse 6 tools, including Voltage Drop Calculator, Horsepower Calculator, Engine Horsepower Calculator.

Voltage Drop Calculator

Estimate resistive voltage drop using entered conductor resistivity and cross section.

Calculate mechanical shaft power from measured torque and rotational speed.

Calculate mechanical shaft power from measured torque and rotational speed.

Calculate equivalent resistance for a list of series or parallel resistors.

Solve DC voltage, current, resistance and power from two known quantities.

Calculate electricity consumption and cost at your entered energy tariff.

6 working tools. Each page explains its inputs, formula and assumptions.