• Resistor color code calculator 1
  • Resistor color code calculator 2
  • Resistor color code calculator 3
  • Resistor color code calculator 4

Resistor color code calculator

For 4, 5 or 6 bands resistors, with this tool you can find its resistance value, or based on the value, find its colors code. We also include other options to give you a great experience of use, such as the possibility of viewing the history of resistors consulted, and share the results as text or image.

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Reviews (30)

Waj. S. Oct 20, 2019     

Super useful when sorting through a pile of resistors and trying to find out the right colour combo. Only feedback is that when searching by value, switching from 4 bands to 5, it doesn't keep the number consistent. Maybe just show both options at the same time?

Ste. Apr 9, 2022     

Very easy to use & it's convenient to refer back via past historical resistor's reading records. Great apps with unobstructive ads displayed.

Mar. B. Jul 27, 2021     

Simple, easy to use - and does what it says on the tin. Buying the ad free version was the easiest of decisions, and I'm happy to reward the developer. Thanks.

Mar. C. Dec 22, 2021     

Fantastic app. Makes identifying resistors super easy and ultra fast. Absolutely love it.

Jim. H. Jul 23, 2020     

Very handy! So simple to use, totally helped me figure out all the resistor values in an old guitar amp with no circuit diagram.

Orl. G. Aug 30, 2020     

Extremely easy to use and well thought out on how to identify the color and values. Thanks

Hor. B. May 20, 2022     

Comes in very handy on antique radio repairs.

.Vi. May 28, 2022     

Very easy,user friendly..Giving 10/10 from my experience

par. f. Dec 28, 2021     

Very useful App to give you accurate value of resistors with much ease and convenience whilst working on circuits

Dav. C. Dec 11, 2021     

Very fast to know the value of resistor easy to use.........mmmmmm....mm mmmmn

And. R. Feb 13, 2022     

Good little app helps me colour code resistors on the fly. Not to many ads ether.

Mar. i. S. Feb 8, 2022     

This is the best electronic app I've ever used it is easy to use and it was very helpful indeed!

Kam. K. Dec 20, 2021     

Wow, this is a very good application. Colors come as soon as you write the code

ikr. h. Dec 17, 2021     

Nice app useful to every electronic mechanic technician try to do more apps sir

le. a. Feb 24, 2022     

I definitely recommend this app since it's really helpful for me who uses resistors.

Saj. P. Oct 2, 2020     

Man, very intuitive and simple app that solved my headache of calculating Resister values.

Gab. R. Jan 30, 2022     

Absolutely awesome didnt know this had a calculator until started to read my notes again from school 20years ago

Elm. B. Mar 29, 2022     

Best and easy to use application for electronic technician like me

Dan. d. T. May 17, 2022     

Great app. Easy to use. Makes life easier.

Gar. G. Jul 5, 2020     

Great app! Personally i prefer an ohmmeter ☺, but this is great to decode the bands!

Siv. S. Oct 12, 2020     

Simple, good looking, easy to use. Thanks developers.

RAH. T. Dec 24, 2020     

Nice app and always useful for electronics projects and give such a true information. 👍👌

Osw. M. Mar 25, 2021     

Just starting to learn electronics. This app is a big help. Awesome!

Kae. Mar 4, 2020     

10/10 Easy to use. Clean and simple U.I and very helpful.

Elm. B. Apr 15, 2021     

I like the app, very useful and big help to a technician like me.

Jar. S. Jan 30, 2020     

Easy to use and nice user friendly interface.

Mik. L. Jun 21, 2020     

Easy to use. Not bloated. Gets right to the point.

Bor. V. Nov 16, 2019     

easy to work with, simple and clear

Ric. D. Aug 25, 2020     

Works great. A fantastic tool for beginners.

AMP. L. Jun 30, 2020     

Very useful app for me and all electronic field persons.