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Kirchhoffs Current Law Calculator
Find the unknown branch current at a node.
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Unknown current
Compare Your Options And Get Clear Answers
Find the unknown branch current at a node.
Kirchhoffs Current Law Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Unknown = sum in – known out
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Kirchhoffs Quick Guide
Typical values for reference.
| Current in 1 (A) | Current in 2 (A) | Current out 1 (A) | Unknown current |
|---|---|---|---|
| 5 | 3 | 4 | 4.00 A |
| 10 | 2 | 7 | 5.00 A |
| 1 | 1 | 0.5 | 1.50 A |
| 20 | 5 | 8 | 17.0 A |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Kirchhoffs Current Law Calculator FAQ
Answers to common questions about this calculator.
It uses the formula shown with your inputs. Real conditions vary, so treat it as a guide.
Unknown = sum in – known out
It is an estimate based on the inputs you enter. Check real quotes, labels or official guidance for important decisions.
Yes. Replace each input with your own figures and the result updates instantly.