Resistors in Series Calculator
Calculate the total equivalent resistance (Req) of resistors connected in a series circuit configuration.
Enter resistor values (Ω) to calculate total series resistance
Equivalent Series Resistance:
Total Resistance (Ohms):
0.000 Ω
In Kilohms (kΩ):
0.000 kΩ
Active Resistor Count:
0
How to Use
- Enter up to 4 resistor values in Ohms (Ω).
- Leave empty any input fields you are not using.
- Click CALCULATE to compute the total series equivalent resistance.
Series Circuit Characteristics
• The same current flows through every resistor in the series branch: I_total = I1 = I2 = I3.
• The total voltage drops across each resistor: V_total = V1 + V2 + V3.
Series Resistor Formula
In a series connection, total equivalent resistance is simply the sum of individual resistor values:
Rtotal = R1 + R2 + R3 + … + Rn
Connecting resistors in series always results in an equivalent resistance that is greater than any individual resistor in the chain.
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