Parallel Resistance Calculator

Find the combined resistance of up to 6 resistors wired in parallel using the reciprocal formula. Includes total current and per-resistor analysis.

Enter up to 6 resistors. Leave unused slots at 0 (they will be ignored).

Resistor R1 (Ω)

Resistor R2 (Ω)

Resistor R3 (Ω) — optional

Resistor R4 (Ω) — optional

Resistor R5 (Ω) — optional

Resistor R6 (Ω) — optional

Supply Voltage (V) — for current calc

Equivalent Resistance66.67 Ω

Req (Ω):66.67 Ω

Resistors in parallel:2

Total current at supply V:0.18 A

Smallest R dominates:100 Ω

Formula1/Req = 1/R1 + 1/R2 + … + 1/Rn