Resistor Color Code Calculator (5-Band) - Free, Instant, In Your Browser
Select the 5 band colors (3 significant digits, a multiplier, and a tolerance) to calculate the resistance value.
How to use Resistor Color Code 5 Band Calculator
- 1Enter the required date(s) and details above.
- 2Click Calculate - Resistor Color Code 5 Band Calculator runs instantly, right in your browser.
- 3Read your result below.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
The 5-band code adds a third significant digit for more precision than the standard 4-band code - e.g. Brown-Black-Black-Red-Brown = 100 x 100 = 10 kΩ ±1%.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.