Resistor Color Code Calc. PRO is a powerful and intuitive tool designed to quickly and accurately decode resistor values. Built for professionals, hobbyists, students, and educators, it provides everything you need to easily identify resistor values and color bands.

Features:

3/4/5/6 Band Support – Calculate resistor values from colors or find color bands from values

Reverse Lookup – Enter a resistor value and instantly see the matching color bands

Save Favorites – Keep your most-used resistor values for quick access

Dark & Light Themes – Switch between themes for a comfortable experience

Multi-language Support – Available in 10 languages: EN, TR, ES, FR, DE, ZH, AR, RU, JA, HI

Offline Functionality – Works anytime, anywhere without an internet connection

Who is it for?

Engineers and technicians working with electronic circuits

Hobbyists and makers exploring electronic projects

Students and educators learning or teaching electronics

Simple, fast, and ad-free — Resistor Color Code Calc. PRO is your perfect companion for electronic projects.