Resistor Calculator

Resistor color code calculator with SMD and resistor combination calculations.

More Info

Easy to use free and zero advertisement application which can do electronic color code calculation for 3, 4, 5 and 6 color bands resistors based on the latest IEC 60062:2016 standard. For every calculation, the nearest E6, E12 and E24 standard resistor values are displayed. To support the color-blind users, the color input buttons have text enabled on long click and the calculated color bands are also displayed in text format. Color code search by giving the numeric value and storage of up to 10 codes is also available. App can do SMD resistor value calculation based on 3- and 4-digit codes and EIA-96 code. App supports resistance calculations of parallel and series resistors. Resistance calculation of a conductor is also supported. Easy share and built-in help enabled.

Resistor value calculation from color code:

  • Support 3, 4, 5 and 6 band resistors.
  • Calculations based on the latest IEC 60062:2016 standard.
  • Dynamic calculations-without any clicks the resistor value is dynamically calculated at the time of giving the band color input.
  • Calculated color band picture together with other values can be easily shared with other applications.
  • Long click on color selector buttons will display its color name and the IEC 60062:2016 text code for that color-Help for color-blind users.
  • A text output of the calculated color bands to support color-blind users.
  • Every color code calculated will also display the nearest E6, E12 and E24 standard resistor values.
  • Long click on calculated resistor value will show the resistance in other units say kilo ohms, mega ohms, etc.
  • User can optionally store 10 color codes for future use and the list can be easily shared with other apps.
  • Color code search option by giving the numeric resistor value is supported. - - Result output with color code image and text which can be easily shared.
  • Built-in help explaining color code calculation.
  • Built-in resistor color code table.
  • Built-in input value validation to prevent errors.

SMD Resistor code to numeric resistance value calculator:

  • Code supported:
    o Standard 3 digit code that can include R to indicate a decimal point, M to indicate a decimal point for milliohms (for current sensing SMDs).
    o Standard 4 digit code that can include R to indicate decimal point.
    o EIA-96 1% code with a number in the range 01 to 96 followed by a letter.
    o 2, 5, and 10% code with a letter, followed by a numbers in the range 01 to 60.
  • Letters supported: A, B, C, D, E, F, H, M, R, S, X, Y, Z and the underline.
  • Auto validation of input values to prevent errors.
  • Share the SMD code with numeric resistance value.

Other resistance calculations:

  • Option to calculate the equivalent resistance of given resisters in parallel.
  • Option to calculate the equivalent resistance of given resisters in series.
  • Option to calculate the resistance of a conductor with given length (support inch, feet, yard, mile, centimetre, meter, kilometre), diameter and conductivity in S/m.
  • For the conductor resistance calculator, 20 built-in material conductivity is available: Silver, Copper, Annealed Copper, Gold, Aluminium, Tungsten, Zinc, Cobalt, Nickel, Ruthenium, Lithium, Iron, Platinum, Tin, Carbon Steel, Lead, Stainless Steel, Titanium, Mercury and Nichrome.
  • Can easily share results with other apps.


  • Easy to use interface optimised for multiple devices.
  • No disturbing ads while using the app.
  • Free application.
  • Light weight.

Special Permission:
App will ask for internal storage write permission. This is to store up to 10 resistor values for future use in a database.




App Feedback
Please say your feedback if you find a problem :innocent:


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0 voters

Thank you MIT :smiling_face_with_three_hearts:


a nice app also a very good ui


Thank you very much @HIFI_APPS

1 Like

Nice app :+1: It would be nice to mention if you use any extensions and credit the developers

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No extensions :innocent:

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Thank you :smiling_face_with_three_hearts:

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Really Nice App @Alpha2020 :kissing_heart:

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Thank you once again :smiling_face_with_three_hearts: :smiling_face_with_three_hearts:

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can you tell me how to make a resistance calculator app by using mit app inventor,please?
:sob: i am really don't know how to make it. please help me.

@Muhammad_Affiq_Husai Create a new topic.

Excellent work!
I have a few very minor suggestions and I will send you a PM shortly.

did you make it with using MIT app inventor only?