Parallel resistors

Blend resistor values instantly—without leaving your browser.

Drop in up to six resistors and we'll compute the equivalent resistance, conductance, and share each branch carries so you can size parts confidently.

116.608 Ω

Req

0.0086 S

Conductance

Branches

Resistor bank

Units

Branch 1

Branch 2

Branch 3

Optional source voltage

Used to estimate total current and each branch share.

Resistor tolerance

Applies evenly to every branch to estimate Req min/max.

Equivalent resistance

116.608 Ω

Conductance 0.0086 S

Total current

0.043 A

@ 5.00 V source

Req min

110.777 Ω

All parts at -5.00%

Req max

122.438 Ω

All parts at +5.00%

Branch contributions

220.000 Ω

4.545 mS conductance

53.0%

0.023 A

330.000 Ω

3.030 mS conductance

35.3%

0.015 A

1000.000 Ω

1.000 mS conductance

11.7%

0.005 A

Textbook formula

Follows the standard 1/Req = Σ(1/Ri) relationship, so you get the same numbers you would from any trusted reference.

Derate guidance

Largest branch share highlights which resistor needs higher power rating—aim for 2× the calculated current.