# Resistance Color Calculator > Calculates resistor values based on color bands and tolerance. (iPhone/iPad app by Fabian Schiller.) - Source: https://appshunter.io/ios/app/resistance-color-calculator/id6472942572 (this page in markdown: same URL + `.md`) - Developer: [Fabian Schiller](https://appshunter.io/developer/1652221993) - Category: Utilities - Price: Free - Rating: 4.88/5 from 60 App Store ratings · 22 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 35 MB - Languages: English, French, German, Hindi, Indonesian, Italian, Japanese, Portuguese, Russian, Spanish and 1 more - Released: 2024-02-17 - Data updated: 2026-08-22 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/resistance-color-calculator/id6472942572/reviews.md ## What is Resistance Color Calculator? Here's how: • Choose from the menu bar how many rings your resistor has. • Hold the resistor with the larger gap between the rings on the right side. • Select the colors of your resistor one after the other and directly receive the resistance value including tolerance, etc. Have fun easily determining the resistance values! ## Key features - Select number of resistor rings - Input resistor colors sequentially - Instant resistance value display - Tolerance calculation - User-friendly interface ## Recent user reviews (10 of 22) All indexed reviews: https://appshunter.io/ios/app/resistance-color-calculator/id6472942572/reviews.md ### 5/5 — Good *2026-05-16, version 1.0* Simple, fast easy to use ### 5/5 — More than good *2026-01-30, version 1.0* It’s great!! Can’t recommend more. ### 5/5 — Excellent *2026-01-16, version 1.0* Excellent little app. ### 5/5 — Simplified Resistance Calculator *2026-01-01, version 1.0* Better than other resistor apps and better than resistor websites ### 5/5 — I like it! *2025-12-10, version 1.0* Great app. Easy to use. Time saver. ### 5/5 — Good app *2025-10-18, version 1.0* New to hobby electronics, helps me quickly put away resistors. ### 5/5 — La mejor *2025-10-05, version 1.0* Super practica, rapida y facil de usar. Sin ads instrusivos ni cosas raras. ### 4/5 — functional *2025-07-20, version 1.0* So far seems good ### 5/5 — Best app for the color blind (protan) *2025-07-10, version 1.0* Hi, best app I found for matching the colors for me being colorblind. ### 5/5 — Insanely great app *2025-06-16, version 1.0* This is a perfect app. No nonsense. Perfect UI. Teaches you how to figure it out without the app. Just insanely great. One of the best of all time. ## Frequently asked questions about Resistance Color Calculator ### What does the Resistance Color Calculator app do? This app helps you determine the resistance value of electronic resistors. You input the colors of the bands on the resistor, and it calculates the resistance value and tolerance for you. ### How do I use the app to find a resistor's value? First, select the number of rings your resistor has from the menu. Then, hold the resistor with the larger gap between rings on the right. Finally, select the colors of your resistor's bands one after another in the app to see the calculated resistance and tolerance. ### Is this app free to use? Yes, the Resistance Color Calculator app is completely free to use. There are no hidden costs or in-app purchases required to access its full functionality. ### What kind of resistors can I calculate with this app? The app is designed to calculate the resistance values for resistors based on their color bands. You can specify the number of rings (e.g., 4, 5, or 6 bands) to accurately determine the resistance and tolerance. ## Version history (last 1 release) ### 1.0 — 2024-02-17 No release notes. ## Apps similar to Resistance Color Calculator | App | Rating | Price | Category | | --- | --- | --- | --- | | [Resistor color code calc](https://appshunter.io/ios/app/resistor-color-code-calc/id1441211200) | 5.0 (5) | Free | Utilities | | [Resistor Color Band Calculator](https://appshunter.io/ios/app/resistor-color-band-calculator/id1658435931) | 4.6 (22) | Free | Utilities | | [Resistor AI Calculator](https://appshunter.io/ios/app/resistor-ai-calculator/id1587462977) | 3.6 (5) | Free | Utilities | | [Electronics Kit](https://appshunter.io/ios/app/electronics-kit/id1190014476) | 4.8 (65) | Free | Utilities | | [Resistor Tools](https://appshunter.io/ios/app/resistor-tools/id826045228) | 5.0 (10) | Free | Utilities | | [Resistor-Converter](https://appshunter.io/ios/app/resistor-converter/id6446839759) | 4.9 (17) | Free | Utilities | ## Related topics [color code resistor](https://appshunter.io/ios/topics/color-code-resistor) · [resistor code calculator](https://appshunter.io/ios/topics/resistor-code-calculator) · [resistor](https://appshunter.io/ios/topics/resistor) · [resistor color](https://appshunter.io/ios/topics/resistor-color) · [resistor identifier](https://appshunter.io/ios/topics/resistor-identifier) · [resistor color code calc](https://appshunter.io/ios/topics/resistor-color-code-calc) · [resistance](https://appshunter.io/ios/topics/resistance) · [resistance color calculator](https://appshunter.io/ios/topics/resistance-color-calculator) · [resistor calculator](https://appshunter.io/ios/topics/resistor-calculator) · [resistor code calculators](https://appshunter.io/ios/topics/resistor-code-calculators) · [resistor scanner](https://appshunter.io/ios/topics/resistor-scanner) · [resistor color band calc](https://appshunter.io/ios/topics/resistor-color-band-calc) · [resistor color barcode](https://appshunter.io/ios/topics/resistor-color-barcode) · [resistor color band calculator](https://appshunter.io/ios/topics/resistor-color-band-calculator) · [resistor color codes calc](https://appshunter.io/ios/topics/resistor-color-codes-calc) · [led resistor calculator plus](https://appshunter.io/ios/topics/led-resistor-calculator-plus) · [sj resistor calculator](https://appshunter.io/ios/topics/sj-resistor-calculator) · [resistor code calculator smd](https://appshunter.io/ios/topics/resistor-code-calculator-smd) · [resistor color code calc lite](https://appshunter.io/ios/topics/resistor-color-code-calc-lite) · [resistor color codes](https://appshunter.io/ios/topics/resistor-color-codes) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-22.*