National Electricians Calc
#1 Electrical Calculator
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
#1 Electricians calculator! Deterministic logic, accurate results, and zero AI guesswork. Get answers you can trust instantly.
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
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
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
The developer, Jamie Bower, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Jamie Bower
- Size
- 52.8 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro Lifetime $19.99
- Pro Yearly $7.99
- Pro Monthly $0.99
- Copyright
- © Sky Hooks Apps 2026