Use DigiKey’s Parallel and Series Resistor Calculator to find the total equivalent resistance of a series or parallel resistance circuit.

Parallel Resistors

R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
Add Resistor

Parallel Resistor formula

Result Format

Total Resistance:

Series Resistors

R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
Add Resistor

Series Resistor formula

Result Format

Total Resistance:

  • R1:
  • R2:
  • R3:
  • R4:
  • R5:
  • R6:
  • R7:
  • R8:
  • R9:
  • R10:
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PART NO.
MANUFACTURER
PRICE
STOCK
MIN QTY
DIGIKEY PART NO.
RESISTANCE
TOLERANCE
POWER (WATTS)
COMPOSITION
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