Calculate how total current splits between parallel resistors.
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Calculation Results
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About this calculator
Quick Reference
IₜTotal Input Current
R₁, R₂Parallel Resistances
I₁, I₂Branch Currents
KCLI₁ + I₂ = Iₜ
Overview
A current divider is a simple linear circuit that produces an output current that is a fraction of its input current. It typically consists of two or more resistors connected in parallel.
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Pro Tips
Current follows the path of least resistance.
The branch with the smaller resistance will have the larger current.
The sum of branch currents must equal the total input current (KCL).
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Fun Facts
"Kirchhoff's Current Law (KCL) is the foundation of the current divider rule."
"In parallel circuits, every branch has the same voltage drop across it."
"Current dividers are used inside multimeters to extend current measurement ranges."
