EngineeringToolkit

Resistors in Parallel Formula

The equivalent resistance of multiple resistors connected in parallel.

Formula

1/Req = 1/R₁ + 1/R₂ + 1/R₃ + ... + 1/Rₙ

Discipline: Electronics Engineering. Result unit: Ω.

Variables and units

  • Req — Equivalent Resistance (Ω): Equivalent resistance
  • R₁ — Resistance 1 (Ω): First resistor
  • R₂ — Resistance 2 (Ω): Second resistor
  • R₃ — Resistance 3 (Ω): Third resistor
  • Rₙ — Resistance n (Ω): nth resistor