Can I mix kilo-ohms and ohms?
Convert everything to ohms before entering the list. Example: 4.7 kΩ becomes 4700.
Step-by-step walkthrough
Series/Parallel Resistors Guide
Use this companion guide beside the interactive calculator to make sure you understand the “why” behind every click. Each section includes the classroom explanation, student-friendly language, and quick practice prompts.
Before you start
Collect the data points listed below and double-check their units. Keeping an organized “givens” list is one of the fastest ways to reduce math errors and impress exam graders.
- resistors
- series
- parallel
Detailed procedure
Step 1
Type resistor values separated by commas, spaces, or new lines.
Step 2
Keep everything in ohms (use kilo/mega-ohms converted to ohms if needed).
Step 3
Read the total for both wiring styles and confirm the number of branches processed.
Teaching & troubleshooting tips
What happens with a zero-ohm jumper?
Parallel resistance collapses to zero if any branch is 0 Ω. The calculator reports the result as undefined in that case.