# ElecFlow — Electrician Toolbox — NEC Calculators & Field Tools

> NEC Calculators & Field Tools (iPhone/iPad app by James Roche.)

- Source: https://appshunter.io/ios/app/elecflow-electrician-toolbox/id6781022055 (this page in markdown: same URL + `.md`)
- Developer: [James Roche](https://appshunter.io/developer/1896491450)
- Category: Utilities, Education
- Price: $4.99
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English
- Released: 2026-06-30
- Data updated: 2026-07-03
- User reviews in markdown: https://appshunter.io/ios/app/elecflow-electrician-toolbox/id6781022055/reviews.md

## What is ElecFlow?

ElecFlow is the professional electrical toolkit built for the job site. Whether you're sizing wire, calculating voltage drop, filling out a panel schedule, or prepping for inspection — everything you need is one tap away, offline and instant.

Trusted by journeymen, master electricians, and apprentices alike, ElecFlow replaces the clipboard, the dog-eared code book, and the back-of-envelope math with a fast, accurate toolbox designed for real field conditions.

ELECTRICAL CALCULATORS

• Ohm's Law — Solve for voltage, current, resistance, or power from any two known values
• Voltage Drop — Single and three-phase drop calculations with NEC 3% pass/fail indicator
• Wire Ampacity — NEC Table 310.12 sizing for copper and aluminum at 60°C, 75°C, and 90°C
• Conduit Fill — Wire count and AWG to conduit size for EMT, PVC, and RMC
• Residential Load Calculator — NEC Article 220 service load with demand factors
• Box Fill — NEC 314.16 conductor, device, clamp, and ground volume calculations
• Motor Circuit Sizing — NEC 430 FLA lookup, minimum wire gauge, breaker size, and overload setting
• Transformer Sizing — Required kVA, standard size recommendation, and full-load amps
• Power Factor Correction — kVAR required and capacitor sizing in µF
• Short Circuit Current — Available fault current at transformer secondary and end of conductor run, with OCPD interrupt rating comparison
• Battery & Inverter Sizing — Off-grid load list to Ah and inverter wattage
• Conduit Bending — Stub-up, offset, three-point saddle, and back-to-back with live multipliers and shrinkage

FIELD TOOLS

• Panel Schedule — Fill in a 20 or 40-circuit breaker directory and export a professional panel card image to share or print
• Inspection Checklist — NEC-based rough-in and trim-out checklists for residential and commercial jobs, with flag, note, and share features

REFERENCE LIBRARY

• NEC Quick Reference — 40+ searchable NEC articles across GFCI/AFCI, grounding, motors, services, and special locations
• Wire Color Codes — US, Canadian, and IEC/EU standards at a glance
• Resistor Color Code — 4-band and 5-band decoder
• Electrical Symbols — Device, power, control, and lighting symbol guide
• Torque Specifications — Terminal torque values from #14 AWG to 500 MCM

UNIT CONVERTER

Convert between kW and horsepower, kVA, power factor, amps, and motor efficiency — all in one place.

BUILT FOR THE FIELD

— Works completely offline. No account, no subscription, no ads
— All NEC data hardcoded — no internet required on the job site
— Dark mode designed for low-light environments
— Large, readable result displays — glanceable at arm's length
— Haptic feedback on every calculation

ElecFlow is a reference and calculation aid. Always verify results against current NEC code, local amendments, and applicable standards. Not a substitute for a licensed electrician's judgment.


## Version history (last 1 release)

### 1.0 — 2026-06-30

No release notes.

## More apps by James Roche

- [UnitFlowPro](https://appshunter.io/ios/app/unitflowpro/id6767599503)
- [Tuner-Flow](https://appshunter.io/ios/app/tuner-flow/id6769026840)
- [Chewie Bone Dasher](https://appshunter.io/ios/app/chewie-bone-dasher/id6771123310)
- [IT Flow Pro](https://appshunter.io/ios/app/it-flow-pro/id6771805472)
- [PitchFlowWiz](https://appshunter.io/ios/app/pitchflowwiz/id6779359697)

All apps by James Roche: https://appshunter.io/developer/1896491450

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-03.*