Thevenin Equivalent Calculator
Calculate the Thevenin equivalent voltage and resistance for a simple source-divider circuit.
V
Ω
Ω
Thevenin Voltage
16.000 V
Thevenin Resistance666.67 Ω
Thevenin Voltage vs Source Voltage
Thevenin's Theorem
Any linear circuit can be replaced by V_th in series with R_th.
Formulas
V_th = V_s x R2 / (R1 + R2)
R_th = R1 || R2 = R1 x R2 / (R1 + R2)
Example Calculation
24 V source, R1 = 1k, R2 = 2k.
- 01V_th = 24 x 2000 / 3000 = 16.0 V
- 02R_th = 1000 x 2000 / 3000 = 666.67 ohms
Frequently Asked Questions
Learn More
Ohm's Law Guide
A complete guide to Ohm's Law. Learn the relationship between voltage, current, and resistance, with practical examples, the power triangle, and circuit analysis tips.