Current Divider Calculator
Use the calculator below to determine the current going through any branch in a parallel circuit. When a circuit is in parallel, the total current coming from the power source divides up into each of the branches of the circuit, based on the resistance values of each of the branches. Current takes the path of least resistance, so more current will go into branches with smaller resistance; conversely, less current will go into a branch of great resistance.
Formula: Is = Itotal (Rtotal / Rn)
Enter values for both current source and resistance to calculate the current through each resistor. You can calculate up to 10 branches. If you have a circuit that only has 2 branches, you would just enter in values for the first 2 resistance values, and leave the rest of the fields blank.