Resistor Color Code Calculator - Free, Instant, In Your Browser
Enter the four color band names (e.g. Brown, Black, Red, Gold) to decode the resistance value (IEC 60062 standard).
How to use Resistor Color Code Calculator
- 1Enter the required date(s) and details above.
- 2Click Calculate - Resistor Color Code 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?
Resistance = (10 × digit1 + digit2) × 10^multiplier, per the standard IEC 60062 color chart.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.