Resistors in Parallel Calculator

Find total resistance of resistors in parallel.

Total resistance (Ω) 50

Formula: 1/R = 1/R1 + 1/R2 + 1/R3

Step-by-step with your numbers:

1. Values used:

2. R1 = 100 Ω

3. R2 = 100 Ω

4. R3 = 0 Ω

6. Total resistance = 50Ω

Did we solve your problem today?

Parallel resistance is always less than the smallest resistor.

The math behind it

1/R_total = 1/R1 + 1/R2 + … Leave unused resistors at 0.

100 ∥ 100 → 50 Ω.

Two equal resistors?

Parallel total is half of one.