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passive components
Total Resistance of Series/Parallel Circuit
Calculate total resistance three ways from voltage, current, and power.
Computes total circuit resistance using three forms of Ohm's Law: R1 = V/I, R2 = V²/P, and R3 = P/I². All three should agree for a consistent set of measurements.
Inputs
Total circuit voltage in volts
Total circuit current in amps
Total circuit power in watts
Results
⚠Total current must be greater than zero
Total Resistance (R1)-ΩResistance from voltage and current in ohms
Total Resistance (R2)-ΩResistance from voltage and power in ohms
Total Resistance (R3)-ΩResistance from power and current in ohms