NEC Box & Conduit Calc1.9 - App Store
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Publisher Description
NEC Box & Conduit Calc is the fastest, most accurate way to calculate box fill, conduit fill, required conduit size, and wire volume - all to the NEC (National Electrical Code).
Built for electricians, contractors, engineers, inspectors, and apprentices, it delivers instant, code-compliant results that save time on every job - right from your pocket, even offline.
Key Features
. Box Fill Calculator
- Device counts, equipment grounding, internal clamps
- All common box sizes and types
- NEC-compliant volume with clear breakdowns
. Conduit Fill Calculator
- EMT, PVC, RMC, IMC & more
- Multiple conductor sizes per conduit
- NEC fill percentages with instant pass/fail
. Required Conduit Size
- Enter your conductors, get the correct conduit size instantly
- See the next size up and down
. NEC Reference Tables
- Chapter 9 Tables 1, 4 & 5 at your fingertips
- Browse every NEC box and conduit size
. Accurate Wire Volume Data
- Built-in AWG volume reference for field, shop, and inspection
. Professional PDF Reports
- Export clean, shareable reports for your records or the inspector
. Clean, Simple Interface
- Designed for electricians under time pressure
- Easy to use with gloves
- Works fully offline
Perfect For
. Electricians
. Electrical contractors
. Students & apprentices
. Inspectors
. Engineers & designers
Download now and get code-compliant fill calculations in seconds - on every job.
Version History Obras (Proyectos): guarda los cálculos en la obra a la que pertenecen y exporta la obra completa en un solo PDF.
Se corrigió el tamaño de tubería requerido conforme a la Tabla 1 del Capítulo 9 del NEC: 53 % para un conductor, 31 % para dos y 40 % para tres o más.
Se eliminaron todos los anuncios. 1.9 Aug 28 • Cleaner layout and faster experience across calculators and reference tables
• Bug fixes and performance improvements 1.8 Jul 19 Cleaner calculator screens, and a refreshed upgrade flow. 1.7 Jun 11 Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
About NEC Box & Conduit Calc
The company that develops NEC Box & Conduit Calc is V PUGAZHENTHI. The latest version released by its developer is 1.9.
To install NEC Box & Conduit Calc on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the NEC Box & Conduit Calc as malware if the download link is broken.
How to install NEC Box & Conduit Calc on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the NEC Box & Conduit Calc is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After NEC Box & Conduit Calc is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 1.9
posted on 2026-10-14
Version History Obras (Proyectos): guarda los cálculos en la obra a la que pertenecen y exporta la obra completa en un solo PDF.
Se corrigió el tamaño de tubería requerido conforme a la Tabla 1 del Capítulo 9 del NEC: 53 % para un conductor, 31 % para dos y 40 % para tres o más.
Se eliminaron todos los anuncios. 1.9 Aug 28 • Cleaner layout and faster experience across calculators and reference tables
• Bug fixes and performance improvements 1.8 Jul 19 Cleaner calculator screens, and a refreshed upgrade flow. 1.7 Jun 11 Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.9
posted on 2026-09-04
Version History Obras (Proyectos): guarda los cálculos en la obra a la que pertenecen y exporta la obra completa en un solo PDF.
Se corrigió el tamaño de tubería requerido conforme a la Tabla 1 del Capítulo 9 del NEC: 53 % para un conductor, 31 % para dos y 40 % para tres o más.
Se eliminaron todos los anuncios. 1.9 6d ago • Cleaner layout and faster experience across calculators and reference tables
• Bug fixes and performance improvements 1.8 Jul 19 Cleaner calculator screens, and a refreshed upgrade flow. 1.7 Jun 11 Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.8
posted on 2026-08-23
Version History • Cleaner layout and faster experience across calculators and reference tables
• Bug fixes and performance improvements 1.8 Jul 19 Cleaner calculator screens, and a refreshed upgrade flow. 1.7 Jun 11 Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.8
posted on 2026-07-22
Version History • Cleaner layout and faster experience across calculators and reference tables
• Bug fixes and performance improvements 1.8 3d ago Cleaner calculator screens, and a refreshed upgrade flow. 1.7 Jun 11 Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.7
posted on 2026-06-30
Version History Cleaner calculator screens, and a refreshed upgrade flow. 1.7 Jun 11 Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.6
posted on 2026-06-10
Version History Performance improvements, and better user experience — update now. 1.6 May 2 New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.6
posted on 2026-05-08
Version History Performance improvements, and better user experience — update now. 1.6 5d ago New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports. 1.5 Feb 27 Regular update with performance improvements. 1.4 Feb 2 • Added Lock Screen mode to prevent accidental changes during NEC box and conduit calculations.
• Includes PDF preview and performance improvements. 1.3 Jan 7 Bug fix for incorrect update prompt. 1.2 12/24/2025 This update adds required conduit size calculations and full iPad compatibility. 1.1 12/11/2025 1.0 12/02/2025
version 1.5
posted on 2026-02-27
New: Optional extension ring support in box fill, with NEC‑correct math and PDF reports.
Disclaimer
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