# Electrician Calculator + — Voltage drop, wire & conduit

> Voltage drop, wire & conduit (iPhone/iPad app by Toffee Finance.)

- Source: https://appshunter.io/ios/app/electrician-calculator-plus/id6794164292 (this page in markdown: same URL + `.md`)
- Developer: [Toffee Finance](https://appshunter.io/developer/1805257670)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.4 · 55 MB
- Languages: American English
- Released: 2026-08-16
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/electrician-calculator-plus/id6794164292/reviews.md

## What is Electrician Calculator +?

NEC-referenced calculators built for the jobsite: modern fields and pickers — no keystroke sequences to memorize, no manual required.

Wire Size & Voltage drop is free, forever. One one-time purchase unlocks everything else. No subscription, no ads, no account, 100% offline.

CALCULATORS

Voltage Drop — check a run or find the wire size for a max drop (free)
Wire Size & Ampacity — 60/75/90°C copper and aluminum, 240.4(D) breaker caps (free)
Ohm's Law — enter any two of V/I/R/P 
Conduit Fill — THHN in EMT, mixed sizes, instant compliant/overfilled verdict
Box Fill — 314.16(B) volumes with per-item breakdown
Motor FLA estimate, Transformer sizing, Dwelling Load (220.82 optional method)
Quick Reference breaker/wire pairings and Conversions

BUILT FOR PROS

Inspector-ready PDF reports — export any result with inputs, NEC article citations, your company name and license number. Hand it to the inspector.
Saved jobs — group calculations by project, reopen them with every input restored, and export a whole job as one PDF packet for the submittal.
NEC edition switching — 2017, 2020, and 2023 citations included. All editions, one price, forever. No paid "code year" upgrades.
Glove-friendly controls, dark mode default for panel rooms and attics.

Results are estimates for planning and study. Verify against the current NEC and local amendments. Not a substitute for the NEC or a licensed electrician.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $19.99 | one-time |



## Version history (last 2 releases)

### 1.0.2 — 2026-08-21

Wire Size calculations is now free forever

### 1.0 — 2026-08-16

No release notes.

## More apps by Toffee Finance

- [Toffee: Debt Payoff Tracker](https://appshunter.io/ios/app/toffee-debt-payoff-tracker/id6743946913)

All apps by Toffee Finance: https://appshunter.io/developer/1805257670

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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 2026-08-26.*