# E-Wire Calc > Enamelled copper wire technical characteristics calculator based on industry standards. (iPhone/iPad app by ELEKTRISOLA.) - Source: https://appshunter.io/ios/app/e-wire-calc/id885429495 (this page in markdown: same URL + `.md`) - Developer: [ELEKTRISOLA](https://appshunter.io/developer/885429498) - Category: Utilities, Productivity - Price: Free - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 13.0 · 26 MB - Languages: American English - Released: 2014-06-09 - Data updated: 2026-08-19 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/e-wire-calc/id885429495/reviews.md ## What is E? E-Wire Calc is an enamelled copper wire (magnet wire) tool based on the industry standards IEC, NEMA or JIS. It provides several functions for the determination of various technical characteristics of the wire in the range 0,010 - 0,8 mm or AWG 58 - 20 respectively. The function DIAMETER allows the conversion of mm, inch and AWG The function RESISTANCE shows the nominal resistance for the given bare copper wire according to the set standard or calculates the diameter for the given resistance respectively The function METALS allows the calculation of bare wire diameters of different metals for a given resistance. The function RESISTANCE TOLERANCE shows the minimal and maximal permitted resistance for a given nominal copper wire diameter according to the set standard. The function SIZES calculates the quantity of enamelled copper for a selected unit of length, the length for a selected unit of quantity and the cross section for a given bare wire and outer diameter. The function BREAKDOWN VOLTAGE shows the minimum voltage of an enamelled copper wire with a given nominal diameter for different addition / increase classes. The function WINDING TENSION calculates the maximal winding tension in cN recommended by ELEKTRISOLA for a given nominal copper wire diameter. The function OVERALL DIAMETER TOLERANCE shows the minimal and maximal permitted outer diameter for an enamelled wire with a given nominal diameter in different addition / increase classes according to the set standard. ## Key features - Diameter conversion (mm, inch, AWG) - Resistance calculation - Metal wire diameter calculation - Resistance tolerance - Enamelled copper quantity and length - Breakdown voltage - Winding tension calculation - Overall diameter tolerance ## Frequently asked questions about E ### What standards does E-Wire Calc use? E-Wire Calc is based on industry standards IEC, NEMA, and JIS, providing flexibility for different user needs. ### What is the range of wire sizes E-Wire Calc supports? The tool supports enamelled copper wire in the range of 0.010 - 0.8 mm or AWG 58 - 20. ### Can E-Wire Calc calculate resistance for different metals? Yes, the METALS function allows for the calculation of bare wire diameters of different metals for a given resistance. ### Does E-Wire Calc help with winding tension? Yes, the WINDING TENSION function calculates the maximal winding tension in cN recommended by ELEKTRISOLA for a given nominal copper wire diameter. ### What devices is E-Wire Calc available on? E-Wire Calc is available for iPhone, iPad, and iPod devices. ### How often is E-Wire Calc updated? The latest version is 1.032.2, last updated on August 4, 2017. Updates are not frequent. ### What is the user rating for E-Wire Calc? E-Wire Calc has a perfect rating of 5.0 stars from 1 review, indicating high user satisfaction. ### Does E-Wire Calc have ads? No, E-Wire Calc does not contain advertisements, offering an uninterrupted user experience. ## Version history (last 5 releases) ### 2.0.0 — 2026-08-19 E-Wire Calc 2.0 — completely rebuilt from the ground up. The whole app has been rewritten to make selecting the right enamelled wire faster, clearer and much more comfortable to use. WHAT'S NEW • All-new interface: the old segmented dial is gone. Every calculation now lives in a clean, scrollable card with large, easy-to-read values. • Choose your own layout: enable only the calculations you need — Diameter / AWG / Inch, Resistance, Sizes, Breakdown Voltage, Max. Winding Tension, Outer Diameter Tolerance — and see all of them at once, updating live as you type. • Precise diameter entry: a new ruler-style spinner with selectable step size (0.001 / 0.01 / 0.02) plus a built-in numeric keypad for exact input. • Min / nom / max at a glance: resistance and tolerances are shown on a visual scale, with the selected metal and the applied standard right next to the result. • 25 metals and alloys: Cu, Al, Ag99.99, CCA and HTCCA grades, CuSn, CuNi, CuMg, Ms70, silver-plated copper and brass, plus the tension-optimised wires RCW, ITW, HTW, SHTW, XHTW and EHTW. • Built-in help: tap the info icon on any card to learn what the calculation does. • Make it yours: light and dark mode, adjustable font size, default metal and standard. • 8 languages: English, German, French, Italian, Spanish, Polish, Japanese and Chinese. • Designed for every screen: responsive layout for iPhone and iPad in portrait and landscape, with side navigation on larger displays. • Your settings and last entries are restored the next time you open the app. Because this is a full rewrite, please make sure to check your saved settings once after updating. ### 1.032.2 — 2017-08-04 This app has been updated by Apple to display the Apple Watch app icon. - Bugfixes ### 1.031.1 — 2017-06-10 * E-Wire Calc now also provides values for various metals and alloys under "Settings". * The language can now also be selected under "Settings". ### 1.027.0 — 2015-05-06 Bug fixes, new functions for breakdown voltage and cross section ### 1.020.0 — 2014-06-09 No release notes. ## Apps similar to E | App | Rating | Price | Category | | --- | --- | --- | --- | | [Building Wire Selector](https://appshunter.io/ios/app/building-wire-selector/id6670218338) | 5.0 (2) | Free | Utilities | | [Select Conductor Wire PRO](https://appshunter.io/ios/app/select-conductor-wire-pro/id1178386753) | — | Free | Utilities | | [Wire Gauge & Size Calculator](https://appshunter.io/ios/app/wire-gauge-and-size-calculator/id6743387075) | 4.9 (13) | Free | Utilities | | [AWG Convert](https://appshunter.io/ios/app/awg-convert/id288990217) | — | Free | Utilities | | [ElectriCalc Pro](https://appshunter.io/ios/app/electricalc-pro/id569677304) | 4.9 (350) | Free | Utilities | | [AWG Calculator: Wire Size](https://appshunter.io/ios/app/awg-calculator-wire-size/id1607173204) | 4.6 (67) | Free | Utilities | ## Related topics [schilde](https://appshunter.io/ios/topics/schilde) · [wire dusseldorf](https://appshunter.io/ios/topics/wire-dusseldorf) · [the wire from safelite](https://appshunter.io/ios/topics/the-wire-from-safelite) --- *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 2026-08-19.*