• Resistor Code Calculator 1
  • Resistor Code Calculator 2
  • Resistor Code Calculator 3
  • Resistor Code Calculator 4

Resistor Code Calculator

Calculate resistor color codes with this handy reference app. The app is useful for every maker, engineer, student and arduino or raspberry pi tinkerer when working with electronics.
Supports 4 and 5-band resistors!

The industry standard resistor color code is used to identify the resistance value of resistors used in all kinds of electronics.

Category : Tools

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Reviews (30)

Tor. A. Oct 26, 2021     

Exactly what it says on the tin. Punch in the band colors, get the resistance and tolerance. Ad is small and out of the way, just how it should be. Wish it had a min/max value chart, but nothing's perfect.

Pal. M. May 7, 2019     

Excellent! Too easy to handle, very simple. I loved it. Although i haven't verified all combinations, i got exactly values according to my inputs. So, it's helping me nicely.

Ber. k. Jun 30, 2019     

For what it does this app gets 5 stars! Simplicity itself! There is a comment that the colours should carry names to assist users afflicted with colour blindness but that begs the question as to how a person so afflicted is going to identify the colours on a resistor in the first place. Love it....

Bor. L. Jan 12, 2022     

Does exactly what it says, correctly every time. Only issue is my ability to tell brown and red stripes apart.

Dev. G. Jun 14, 2021     

The best and most simplified resistor color code calculator very reliable too. There are many more apps like this one but none of the other apps are as good as this one

Aji. S. May 6, 2020     

Easy to use and auto calculation is the best feature,A must have app for beginners and students of electrical and electronics

Epa. F. K. Apr 17, 2020     

So good, make me know the type and value of resistors. Help my work in home! Thank You!

Joh. D. Apr 6, 2022     

Very easy and useful application.

Mic. C. Apr 28, 2019     

Fantastic tool to help figure out wich resistors you are dealing with.

Moh. A. Aug 9, 2020     

one of the useful app for me. yeah, its easy and helpful. i like it.

Nar. R. May 17, 2019     

Nice app easy to understand and operate

Ach. R. Feb 8, 2019     

i have resistance with Red Brown Black gold, this app not showing exact value.

Rap. A. Dec 18, 2019     

Easy and quick to use

Aak. S. Apr 27, 2019     

doesnt show properly. no guide waste app

PS. R. Apr 1, 2019     

Excellent App, Easy to use.

Izu. M. May 23, 2020     

Amazing tool for electronics to find out value 4 and 5 band colour code of resistors

S.M. T. Apr 12, 2019     

haha its fun i dont have to remember the colors

A. G. u. Feb 13, 2019     

good ,but it can't read 4 colors

Dan. M. Jun 27, 2020     

Perfect for the job

Esl. E. Oct 14, 2018     

The best app to identify the blue nasty resistors

Ema. H. May 13, 2020     

i love it. it helps me lots in my work

Jai. G. Mar 31, 2022     

It's good for my children

Jak. L. May 18, 2021     

Very impressive resistor calculator 😃

MGK. x. Jun 15, 2019     

great... nice. easy to use

DR.. B. Apr 20, 2020     

Best app evver

Mic. D. Dec 11, 2021     

Not bad ..there are better ones

Noy. U. Apr 15, 2019     

bad service provide by this app

Dip. R. Feb 13, 2020     

Best app for starters

Jas. A. May 12, 2020     

Only 4 band resistor

Pra. C. B. Apr 10, 2019     

there is one colour missing which a maron