NEC Box & Conduit Calc

NEC Box & Conduit Fill

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

NEC Box & Conduit Calc is the most accurate way to calculate box fill, conduit fill, and wire volume according to the NEC (National Electrical Code). Built for electricians, electrical contractors, engineers, inspectors, and students — this app provides instant, reliable fill calculations that save time on every job. Key Features • Box Fill Calculator – Supports device counts, equipment grounding, internal clamps – Includes all common box sizes and types – NEC-compliant volume calculations – Instant results with clear breakdowns • Conduit Fill Calculator – Supports EMT, PVC, RMC, IMC & more – Choose multiple conductor sizes per conduit – NEC-based fill percentages – Quickly see pass/fail results • Accurate Wire Volume Data – Built-in AWG volume reference – Perfect for field, shop, and inspection work • Clean, Simple Interface – Designed for electricians under time pressure – Easy to use with gloves – Works offline Perfect For • Electricians • Electrical contractors • Students & apprentices • Inspectors • Engineers & designers

Ratings & Reviews

  • 4.9
    out of 5
    16 Ratings

Performance improvements, and better user experience — update now.

Version 1.6

The developer, V PUGAZHENTHI, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Location
    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • V PUGAZHENTHI
Size
  • 48.8 MB
Category
  • Utilities
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
  • English and Spanish
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © All rights reserved
  • Developer Website
  • Privacy Policy

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