Series / Parallel R & C Calculator
Combine resistors or capacitors in series or parallel. Add as many as you need.
// combine resistors or capacitors — add as many as you need
▸ show formulas
Resistors:
Series: Req = R1 + R2 + … + Rn
Parallel: 1/Req = 1/R1 + 1/R2 + … + 1/Rn
Capacitors (inverted from resistors):
Parallel: Ceq = C1 + C2 + … + Cn
Series: 1/Ceq = 1/C1 + 1/C2 + … + 1/Cn
Series: Req = R1 + R2 + … + Rn
Parallel: 1/Req = 1/R1 + 1/R2 + … + 1/Rn
Capacitors (inverted from resistors):
Parallel: Ceq = C1 + C2 + … + Cn
Series: 1/Ceq = 1/C1 + 1/C2 + … + 1/Cn
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