Watts Volts Amps Calculator (Real Power to Current)
Calculate current and apparent power from real power, voltage, phase model, and power factor.
Open calculatorOhm law, watts, amps, volts, resistance, current, voltage, and DC power calculations.
Calculate current and apparent power from real power, voltage, phase model, and power factor.
Open calculatorCalculate ideal voltage from entered real power in watts and current in amperes using direct algebra.
Open calculatorConvert peak voltage to RMS and peak-to-peak voltage for a sinusoidal waveform.
Open calculatorCalculate steady-state DC watts from entered voltage and current at the same operating point.
Open calculatorCalculate current in amps from entered power and voltage; AC phase, power factor, inrush, and protection decisions remain separate.
Open calculatorCalculate single-phase AC active power in watts from RMS voltage, RMS current, and power factor.
Open calculatorCalculate single-phase AC apparent power in VA from RMS voltage and RMS current.
Open calculatorCalculate single-phase or balanced three-phase AC line current from real power, RMS voltage, power factor, and phase model.
Open calculatorCalculate RMS current from a sine-wave peak, verified waveform factor, equally spaced samples, or separate AC and DC components.
Open calculatorConvert a measured or modeled peak voltage to RMS voltage; 0.7071 applies to a verified sinusoidal waveform.
Open calculatorConverts resistance to conductance in siemens for reciprocal circuit relationships and parallel-network checks.
Open calculatorResolves complex admittance magnitude and phase from conductance and susceptance values in siemens and degrees.
Open calculatorEstimate watts, volts, amps, and apparent power from real power, voltage, phase model, and power factor.
Open calculatorSolve for voltage, current, resistance, or power from known fixed-resistance electrical values.
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