Voltkit: NEC Conduit Fill Calc

Conduit Bending & Voltage Drop

Only for iPhone

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

iPhone

Every result cites its exact NEC 2023 table — 17 offline calculators for voltage drop, conduit fill, wire size, ampacity and more, built for working electricians. Voltkit is a precision NEC calculator built for working electricians — fast, accurate, and 100% offline. Every result cites the exact NEC 2023 table or formula behind it, so you can trust the number on the job and back it up to an inspector. — 17 PRO CALCULATORS — • Voltage Drop — approximate-K and exact Chapter 9 (Table 9 R/X) methods • Conduit Fill — 10 raceways and every insulation, Chapter 9 Table 4 • Wire Size — the smallest conductor that meets both ampacity and voltage drop • Wire Ampacity — Table 310.16 with ambient and bundling adjustments, plus free-air • Box Fill — NEC 314.16 with a full standard-box picker • Conduit Bending — offset, rolling, and saddle bends • Ohm's Law and AC Power — watts, VA, and power factor, single- and three-phase • Grounding — EGC (250.122), GEC (250.66), and 250.122(B) upsizing • Dwelling Load — optional and standard methods (Article 220) • Motor — full-load current, conductor, overload, and OCPD (Article 430) • Plus Transformer, Pull Box, Parallel Sets, Motor Feeder, Power-Factor correction, and Appliance Demand — BUILT FOR THE FIELD — • Works entirely offline — every NEC table lives on your device, no signal required • Show Calculation — open any result into clear, step-by-step math • Save jobs and reopen them later from your calculation history • Built-in NEC reference tables: ampacity, conduit fill, box fill, conductor properties, and more • NEMA receptacle and conductor color-code references — WHY ELECTRICIANS TRUST VOLTKIT — Every calculation is derived from a published NEC 2023 table or formula and checked against authoritative worked examples (Mike Holt, Ugly's, NEC Annex C). No ads, no clutter, no internet required — just a clean, precise instrument that respects your trade. — FREE, WITH OPTIONAL PRO — Voltkit is free to use: every calculator gives you a complete, NEC-cited result and full worked steps. Voltkit Pro unlocks the advanced options for commercial and industrial work — three-phase, exact-impedance voltage drop, free-air ampacity, every raceway and insulation, larger conduit, box and parallel runs, over-1000 V transformers, and the full standard load calc — plus unlimited saved calculations. Prices may vary by region. Built in the US for NEC 2023. Canadian CEC, BS 7671, and AS/NZS 3000 code packs are on the roadmap. Voltkit is an independent tool and is not affiliated with or endorsed by the NFPA.

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Voltkit now has the deepest conduit-bending toolset around: • Every bend drawn to scale — offsets, saddles, stubs & rolling • 90° stub-ups with take-up, plus back-to-back • 3-point and 4-point saddles • Segment (large-radius) and concentric parallel-rack bends • Bend Length — developed length + gain • 360° bend-total check (NEC 358.26) • Minimum bend radius (NEC Chapter 9, Table 2) • Fractional 1/16" marks throughout, plus custom angles As always: every result cited to NEC 2023, fully offline.

Version 1.1.0

The developer, Chirag Arora, 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 Linked to You

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

    • Contact Info
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    • Usage Data
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Accessibility

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Information

Seller
Chirag Arora
Size
46.4 MB
Category
Utilities
Compatibility
Requires iOS 15.0 or later.
  • iPhone
    Requires iOS 15.0 or later.
  • iPod touch
    Requires iOS 15.0 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.
Languages
English
Age Rating
4+
In-App Purchases
Yes
  • Voltkit Pro - Yearly $19.99
  • Voltkit Pro - Monthly $4.99
  • Learn More
Copyright
© Chiaro Apps
  • Developer Website
  • Privacy Policy
  • License Agreement

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