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Parallel Resistance Calculator

See our other Electronics Calculators.

The equivalent resistance of series resistors is the sum of each of the resistors.  The equivalent resistance of parallel resistors is computationally more complex.  Their conductances are additive.  This calculator will compute the parallel equivalent resistance for up to 6 parallel resistors.  Fill resistors in starting from R1.  For unused resistors leave their value blank. Make sure all blank resistors are at the bottom of the list. 

You can use any units on the resistors such as K ohms, or M ohms, so long as you are consistent.  

Parallel Resistors

R1   (Ohms)
R2   (Ohms)
R3   (Ohms)
R4   (Ohms)
R5   (Ohms)
R6   (Ohms)

Fill in one of the parameters below and the other2 will be computed.
Rparallel  (Ohms)

See our standard resistor calculator for a real world resistor value. 

Equations

Rparallel = 1/(1/R1+1/R2+1/R3 ...)

Contract Engineering Services

Daycounter specializes in contract electronics design.  Do you need some help on your project?  Contact us to get a quote.

 

Disclaimer:  Daycounter, Inc. doesn't guarantee the result or accuracy of this free calculator. 

 

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Disclaimer: Daycounter, Inc. doesn't guarantee the accuracy of any of it's content. Use at your own risk.

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