Electrical Calculations
Basic Electrical Math
Solve common electrical quantities, circuit relationships, and field-unit conversions.
Ohm’s Law and Power CalculatorCalculate electrical values and AC power.AC Power and Current CalculatorCalculate AC current from real power, voltage, phase, and power factor.Electrical Unit ConverterConvert electrical quantities and conductor area.Series and Parallel Resistance CalculatorCalculate equivalent resistance, source current, and branch values for simple resistive circuits.Voltage Divider CalculatorEstimate divider output, including the effect of an optional resistive load.Current Divider CalculatorCalculate equivalent resistance and branch currents for parallel resistive branches.Resistive Load Bank CalculatorCalculate element voltage, line current, and total power for single-phase or balanced three-phase resistive load banks.Resistive Load Voltage Change CalculatorCompare current and power when a fixed-resistance load operates at a different voltage.