Box Fill Calc NEC
Box Fill Calc NEC is made and published by Rizvan Adzhoian. AppBrain is an independent app data site and isn't affiliated with Rizvan Adzhoian. The app name, icon, screenshots and description belong to Rizvan Adzhoian and are shown as published on the App Store.
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- Rating on App Store
- 5.00
- 1 ratings
- Last updated
- June 10, 2026
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Releases
Updates seen on the App Store- Version
- 1.0.9
- Launched
- April 2026
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Technology
Found in the app by AppBrain- Price
- $0.99
- App size
- 34.1 MB
- Content rating
- High
Technologies used by Box Fill Calc NEC
About the app and developer
About Box Fill Calc NEC
Box Fill Calc NEC is an utilities app developed by Rizvan Adzhoian.
User Ratings
Box Fill Calc NEC is rated 5.00 out of 5 stars. The rating is based on one rating ratings.
App Information
Box Fill Calc NEC costs $0.99. The app size is 34.06 MB. The latest version available is 1.0.9. The last update was on June 10, 2026.
Technical Requirements
The app has a content rating of High Maturity. The app has been available on the App Store since April 2026.
Developer information for Rizvan Adzhoian
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Store listing
By Rizvan Adzhoian, from the App Store
Description by Rizvan Adzhoian Written by the developer, not by AppBrain. Click to read.
Calculate box fill volumes instantly using official NEC 2023 Article 314.16 data (Tables 314.16(A) and 314.16(B)). No internet required - works 100% offline on the job site.
FEATURES:
- All 24 standard metal box sizes from Table 314.16(A): Device 3x2 and 4x2-1/8 (handy box), Round/Octagonal, Square 4", Square 4-11/16", Masonry, FS, FD
- Custom volume entry for non-standard boxes
- Conductor sizes: 18 AWG to 6 AWG per Table 314.16(B)
- Internal cable clamps, fixture studs, and hickeys
- Multi-gang device fill calculation
- Equipment grounding conductors (EGC) with NEC 2023 rules
- Isolated grounding conductors - separate allowance
- Visual PASS/FAIL indicator with fill percentage
- Shows minimum box volume needed when over-filled
- Suggests a standard box that will pass
PRO FEATURES (one-time purchase):
- No ads
- Save calculation history
- Export calculations as PDF reports
- Dark theme support
BUILT FOR THE JOB SITE:
This app is designed by electricians, for electricians. The interface is clean, fast, and works with one hand. Add conductors, check your fill, and move on - no complicated menus or unnecessary features.
ACCURATE NEC DATA:
All box volumes are sourced from NEC 2023 Table 314.16(A). Conductor volume allowances follow Table 314.16(B) exactly. Fill rules follow Article 314.16 for conductors, clamps, support fittings, devices, and grounding conductors. Always verify calculations against the official NEC code book before installation.
NEC 314.16 FILL RULES:
- Each conductor: volume from Table 314.16(B) based on AWG size
- Internal clamps: 1× largest conductor volume (all clamps combined)
- Support fittings: 1× largest conductor per fitting type
- Devices: 2× largest conductor per gang
- EGC (≤4): 1× largest EGC volume
- EGC (>4, NEC 2023): 1/4 allowance per additional conductor
- Isolated grounds: counted separately
PERFECT FOR:
- Licensed electricians
- Electrical apprentices
- Electrical engineers and designers
- Electrical contractors
- DIY electrical projects
- NEC code exam preparation (Journeyman & Master)
OFFLINE & PRIVACY:
- Works 100% offline - no internet needed
- No account required
- No data collection
- Your calculations stay on your device
Simplify your box fill calculations on the job site.