Current Divider Calculator
Compute branch currents for two parallel resistors R₁, R₂.
Input Data
Input Total current I.
A
Input Resistor R₁.
Ω
Input Resistor R₂.
Ω
Results
0.666667A
0.333333A
I₁ = 0.666667 A, I₂ = 0.333333 A
At a glance:Current Divider Calculator: enter parameters to compute results; complements related calculators.
Formula
I₁ = I·R₂/(R₁+R₂)
I₂ = I·R₁/(R₁+R₂)
How to Use
- Enter total current I.
- Enter the two parallel resistors R₁, R₂.
- Get each branch current.
Case Studies
1 A through 100Ω‖200Ω
I₁ = 1·200/300 = 0.6667 A, I₂ = 1·100/300 = 0.3333 A.
FAQ
Which branch gets more current?
Current is inversely proportional to resistance; the smaller resistor gets more.
Related Tools
References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.