# WireCoder: Electrician Calc — NEC Wire Size & Conduit Fill

> NEC Wire Size & Conduit Fill (iPhone/iPad app by Stephany Valdes Nando.)

- Source: https://appshunter.io/ios/app/wirecoder-electrician-calc/id6809646153 (this page in markdown: same URL + `.md`)
- Developer: [Stephany Valdes Nando](https://appshunter.io/developer/1824575978)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.1 · 59 MB
- Languages: American English
- Released: 2026-10-28
- Data updated: 2026-10-30

## What is WireCoder?

Five electrical calculations, done the way you'd do them with the book in your hand — but faster, and without the arithmetic mistakes.

WireCoder shows the factors behind every answer and the code article it came from, so you can check the number instead of trusting it. It works with no signal.

THE CALCULATORS

Voltage Drop. Source voltage, load current, one-way length, conductor size, copper or aluminum, single or three phase. Returns volts dropped, percent of source, voltage at the load, and conductor resistance.

Conduit Fill. EMT, IMC, RMC and PVC, trade sizes from 1/2" up, THHN/THWN-2 or XHHW.
Returns actual fill percent against the allowable fill, total conductor area, and raceway area, per NEC Chapter 9.

Wire Ampacity. Base ampacity from Table 310.16, temperature correction for ambient, and the adjustment factor for current-carrying conductors in the raceway. Each factor is shown separately, not folded into one number.

Box Fill. Required volume against box volume per NEC 314.16, with insulated conductors, devices, internal clamps and equipment grounding conductors counted separately. Tells you when to go to a bigger box.

Conduit Bending. Offset angle and offset depth in; distance between bends and shrink out.
Marked once, at the bender.

BUILT FOR THE JOB SITE

Works offline. Open it in a concrete basement, a mechanical room, or forty miles from a tower. Once you're signed in, your calculators stay available without signal for up to 30 days.

Shows its work. Every result lists the intermediate values and the article number behind it. You can hand the derating to an inspector.

One engine. The web calculators and the app run the same calculation code. The answer in your truck is the answer at your desk.

Large targets, plain results. Big numbers, honest units, no fake precision, no clutter.

Saves the job. Any calculation can be saved with its inputs and its code edition, and shared as plain text in one tap.

FREE AND PRO

Voltage Drop and Conduit Fill are free. Unlimited, no metering, no account required to start.

WireCoder Pro unlocks Wire Ampacity, Box Fill and Conduit Bending, plus saved jobs across your devices. Pro is an auto-renewing subscription available monthly or annually, with a free trial; the price is shown in the app before you subscribe. You can cancel any time in your App Store account settings.

CODE EDITION

This version calculates using 2023 National Electrical Code data and rules. The edition in use is shown on every calculator screen and in Profile.

Local amendments and your Authority Having Jurisdiction can differ. WireCoder produces estimates. Verify results against the current code, local requirements, manufacturer instructions, and the conditions on your job before you rely on them.

Terms of Use: https://wirecoder.altuzar.dev/terms-of-service
Subscription Terms: https://wirecoder.altuzar.dev/subscription-terms
Privacy Policy: https://wirecoder.altuzar.dev/privacy-policy
Help: https://wirecoder.altuzar.dev/help-center

NEC, National Electrical Code, NFPA 70 and NFPA are registered trademarks of the National Fire Protection Association. WireCoder is not affiliated with, endorsed by, or sponsored by the NFPA.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| WireCoder Pro Monthly | $7.99 | per month |
| WireCoder Pro Annual | $59.99 | per year |


## Is WireCoder safe?

Not enough ratings yet to assess WireCoder.

## Is WireCoder legit?

WireCoder: Electrician Calc appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for WireCoder is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-28

No release notes.

## More apps by Stephany Valdes Nando

- [FounderAI Pro](https://appshunter.io/ios/app/founderai-pro/id6748180393)
- [10,000 Offline Books in 10 Min](https://appshunter.io/ios/app/10000-offline-books-in-10-min/id6785132606)

All apps by Stephany Valdes Nando: https://appshunter.io/developer/1824575978

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*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 2026-10-30.*