Series Resistance Calculator
Ω
Ω
Ω
Ω
—
Ω
Formula: R_total = R1 + R2 + R3 + ...
Series Resistance Calculator
Resistors in series are connected end-to-end so the same current flows through each one. The total resistance is simply the sum of all individual resistances.
Conversion Formula
R_total = R1 + R2 + R3 + ...
In a series circuit, resistances add directly: R_total = R1 + R2 + R3 + ...
Step-by-Step Examples
R1=100Ω, R2=200Ω = 300Ω
100 + 200 = 300
R1=1kΩ, R2=2.2kΩ, R3=3.3kΩ = 6.5kΩ
1000 + 2200 + 3300 = 6500
Frequently Asked Questions
How do you calculate series resistance?
Add all resistance values together. R_total = R1 + R2 + R3 + ...
Is total series resistance always higher than any single resistor?
Yes, the total resistance in series is always the sum of all individual resistances, so it is always greater than the largest single resistor.
What happens to current in a series circuit?
Current is the same through every component in a series circuit.