# Voltage Drop Calc NEC & IEC — Wire size, Cu/Al, % drop

> Wire size, Cu/Al, % drop (iPhone/iPad app by HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI.)

- Source: https://appshunter.io/ios/app/voltage-drop-calc-nec-and-iec/id6796341338 (this page in markdown: same URL + `.md`)
- Developer: [HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI](https://appshunter.io/developer/1871741424)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 10 MB
- Languages: American English, Arabic, French (France), German (Germany), Italian, Japanese, Korean, Brazilian Portuguese, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2026-08-05
- Data updated: 2026-08-06
- User reviews in markdown: https://appshunter.io/ios/app/voltage-drop-calc-nec-and-iec/id6796341338/reviews.md

## What is Voltage Drop Calc NEC & IEC?

The field electrician's voltage-drop calculator — NEC and IEC in one honest tool.

Enter system voltage, load current and one-way run length, pick the conductor, and read the drop in volts, the percentage and a clear verdict against the 3% / 5% recommendation. Switch between NEC (AWG/kcmil, K-factor method, feet) and IEC 60364 (mm², resistivity method, meters) — copper and aluminum, single-phase and three-phase, adjustable power factor.

PRO
• Both standards in one app
• Reverse sizing: enter a target % and get the smallest conductor that passes, with ampacity and breaker suggestion
• Save calculations to history
• Share clean PDF reports

Built for gloves and sunlight: big keypad, huge results, Outdoor Bright mode.

Everything stays on your phone — fully offline, no account, no tracking.

Results are planning estimates; always verify with your local code authority.

———
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://hdappstudio.com/voltagedrop/privacy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| VoltageDrop Pro — Yearly | $14.99 | per year |
| VoltageDrop Pro — Monthly | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| VoltageDrop Pro — Lifetime | $29.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-05

No release notes.

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All apps by HD YAPIMCILIK VE TEKNOLOJI ITHALAT IHRACAT TICARET LIMITED SIRKETI: https://appshunter.io/developer/1871741424

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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 2026-08-06.*