Series & Parallel Resistor Calculator
Build a network of up to 8 resistors in series or parallel and find the equivalent resistance.
R1Ω
R2Ω
R3Ω
Equivalent resistance
7.9 kΩ
7900.00 Ω exact
Frequently Asked Questions
How is series resistance calculated?+
Rtotal = R1 + R2 + R3 + … Total resistance is simply the sum of all resistors.
How is parallel resistance calculated?+
1/Rtotal = 1/R1 + 1/R2 + 1/R3 + … The equivalent resistance is always less than the smallest resistor in the group.