Voltkit: NEC Conduit Fill Calc
iOS app by Chirag Arora. Utilities · Chirag Arora
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.1.0
- Listing last refreshed
- 2026-09-10
View the original store listing
Store description excerpt
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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