# National Electricians Calc — #1 Electrical Calculator

> Electrical calculation tool for electricians, featuring conduit fill, ampacity, and voltage drop. (iPhone/iPad app by Jamie Bower.)

- Source: https://appshunter.io/ios/app/national-electricians-calc/id6760480960 (this page in markdown: same URL + `.md`)
- Developer: [Jamie Bower](https://appshunter.io/developer/1883449255)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.1 · 50 MB
- Languages: American English
- Released: 2026-04-03
- Data updated: 2026-07-03
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/national-electricians-calc/id6760480960/reviews.md

## What is National Electricians Calc?

National Electricians Calc gives electricians fast, reliable electrical calculations built for the jobsite.

Stop wasting time guessing with AI, or relying on generic tools that do not match the way electricians actually work. This app is designed to help you get consistent results quickly so you can keep the job moving.

Whether you are working through conduit fill, ampacity calculations, box fill, voltage drop, motors, transformers, bonding, or wire sizing, National Electricians Calc is built to give you practical calculation tools in one clean, professional app.

Features:

Conduit fill calculations
Conduit sizing
Ampacity calculations
Voltage drop calculations
Box fill calculations
Transformer calculations
Motor calculations
Bonding conductor sizing
Save favourites for quick access later

Built for electricians who want dependable tools without the clutter.

No fluff. No AI guessing. Just real calculations.

Disclaimer: National Electricians Calc is a reference and calculation tool only. It does not replace the National Electrical Code, local code requirements, manufacturer instructions, engineering judgment, or inspector approval. Users are responsible for verifying all results before use. This app is not affiliated with, endorsed by, or associated with the National Electrical Code, NFPA, or any government agency or authority. Use of this app is at your own risk.

https://national-electricians-calc.replit.app/terms

## Key features

- Conduit fill calculations
- Ampacity calculations
- Voltage drop calculations
- Box fill calculations
- Transformer calculations
- Motor calculations
- Save favourite calculations

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $7.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Lifetime | $19.99 | one-time |



## Frequently asked questions about National Electricians Calc

### What types of electrical calculations does National Electricians Calc offer?

National Electricians Calc offers a comprehensive suite of calculations including conduit fill, conduit sizing, ampacity, voltage drop, box fill, transformer calculations, motor calculations, and bonding conductor sizing.

### Is National Electricians Calc free to use?

The app is free to download and use for its core features. It also offers optional 'Pro' subscription plans for enhanced functionality, with options for monthly ($0.99/P1M) and yearly ($7.99/P1Y) billing.

### What devices is National Electricians Calc compatible with?

National Electricians Calc is currently available for iPhone and iPod devices.

### How often is National Electricians Calc updated?

The app was last updated on April 4, 2026, with version 1.1.2. This indicates a recent update, suggesting ongoing development and support.

### Does National Electricians Calc contain advertisements?

No, National Electricians Calc does not contain advertisements. The app focuses on providing a clean and professional user experience without interruptions.

### What is the age rating for National Electricians Calc?

National Electricians Calc has an age rating of 4+, making it suitable for a wide range of users.

### Can I save my frequently used calculations in National Electricians Calc?

Yes, the app allows you to save your favorite calculations for quick access later, streamlining your workflow on the jobsite.

### Is National Electricians Calc affiliated with the National Electrical Code?

No, National Electricians Calc is a reference and calculation tool only and is not affiliated with, endorsed by, or associated with the National Electrical Code, NFPA, or any government agency.

## Version history (last 2 releases)

### 1.1.2 — 2026-04-04

Version 1.1.2

Bug fixes and accuracy improvements:

- Spanish language added
- Ampacity Calculator — Current carrying conductor (CCC) adjustment ranges bug fix 
- Burial Depth Calculator — Fixed an issue where the calculator appeared blank when first opened

### 1.1.0 — 2026-04-03

No release notes.

## More apps by Jamie Bower

- [Canada Electricians Calculator](https://appshunter.io/ios/app/canada-electricians-calculator/id6760246552)

All apps by Jamie Bower: https://appshunter.io/developer/1883449255

## Related topics

[electrical box fill calculator](https://appshunter.io/ios/topics/electrical-box-fill-calculator)

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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 2026-07-03.*