Thevenin Equivalent Calculator

Calculate Thevenin equivalent voltage and resistance from open circuit and short circuit measurements.

Voltage measured with load disconnected.
V
Current measured with output shorted.
A
Actual load resistance to analyze.
Ω

Results

Thevenin Resistance-Ω
Voltage across Load-V
Load Current-mA
Load Power-mW
Max Power Transfer (RL=Rth)-mW
References: Hayt Engineering Circuit Analysis; Nilsson Electric Circuits