# E-Calc USA

> Electrical code calculations and utilities for professionals based on the 2026 NEC. (iPhone/iPad app by Snappy Appz Inc..)

- Source: https://appshunter.io/ios/app/e-calc-usa/id6502258186 (this page in markdown: same URL + `.md`)
- Developer: [Snappy Appz Inc.](https://appshunter.io/developer/375591377)
- Category: Utilities, Productivity
- Price: $14.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.0 · 52 MB
- Languages: American English
- Released: 2024-05-17
- Data updated: 2026-06-08
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/e-calc-usa/id6502258186/reviews.md

## What is E?

E-Calc USA 2026: The Ultimate NEC Companion
Stop flipping through code books and start calculating with precision.

E-Calc USA 2026 is the definitive electrical resource for professionals who demand more than just simple formulas. Designed specifically for electricians, engineers, and contractors, this app provides instant, accurate results based on the 2026 National Electrical Code (NEC).

While other apps stop at basic math, E-Calc USA handles the heavy lifting—delivering code-compliant wire sizing, conduit capacities, fusing, and bonding requirements in seconds.

Professional Features for the Field

Advanced Motor & Transformer Tools

Motor Loads: Get instant results for maximum overcurrent, overload protection, minimum wire size, conduit size, and bond wire requirements.

Transformers: Calculate FLA, pipe size, fuse/breaker ratings, and bond sizing for both primary and secondary systems.

Precision Wire & Conduit Sizing

Ampacity & Derating: Calculate allowable ampacity for any wire type or complex derating scenario.

Conduit Fill: Quickly find the maximum number of similar-sized wires for any given pipe.

Expansion & Spacing: Calculate linear expansion for conduits and required strap spacing.

Complex Calculations Made Simple

Voltage Drop: Solve complicated runs easily. Get results for percentage drop, maximum run lengths, and wire sizing, with full support for derating.

Box Fill: Accurate calculations in both mL and cubic inches.

On-Site Utilities & Reference

Panel Legends: Create custom, professional panel legends and print them directly to scale.

Torque Settings: Access recommended torque settings for a wide variety of lugs and terminations.

NEMA Reference: Quickly find NEMA codes and receptacle specifications.

Built for Your Workflow

Save & Share: Every calculation is saved and can be printed or shared with your team or inspectors.

Universal Access: Buy once and run E-Calc USA on your iPhone, iPad, and Mac.

Integrated Tools: Includes a comprehensive unit converter, Ohm’s Law calculator, and voltage unbalance tool.

Whether you are in the office designing a system or on-site during an inspection, E-Calc USA ensures you have the power of the National Electrical Code right in your pocket.

Download E-Calc USA today and work smarter.

## Key features

- NEC 2026 compliant calculations
- Wire sizing and ampacity
- Conduit fill and expansion
- Motor and transformer calculations
- Voltage drop and box fill
- Panel legends and torque settings
- Integrated unit converter and Ohm's Law

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/e-calc-usa/id6502258186/reviews.md

### 5/5 — Excellent

*2024-06-22*

Great resource to have at your fingertips. Good job guys.

## Frequently asked questions about E

### What is E-Calc USA?

E-Calc USA is a paid utility app designed for electricians and engineers. It provides instant, accurate calculations based on the 2026 National Electrical Code (NEC) for tasks like wire sizing, conduit fill, and motor loads.

### What electrical calculations does E-Calc USA perform?

E-Calc USA performs a wide range of calculations including motor and transformer loads, wire ampacity and derating, conduit fill, voltage drop, and box fill. It also offers on-site utilities like panel legends and torque settings.

### Is E-Calc USA compatible with my devices?

Yes, E-Calc USA is designed for universal access. You can run it on your iPhone, iPad, and Mac after a one-time purchase.

### How often is E-Calc USA updated?

The latest version, 1.2.0, was released on April 3, 2026. Updates are provided to ensure the app remains current with electrical codes and features.

### What is the price of E-Calc USA?

E-Calc USA is available for a one-time purchase of $14.99. This grants you access to all features on your supported Apple devices.

### Does E-Calc USA have ads?

No, E-Calc USA does not contain advertisements. It is a paid application that offers an ad-free experience for its users.

### Can I share my calculations from E-Calc USA?

Yes, every calculation performed within E-Calc USA can be saved and then printed or shared directly with your team or inspectors.

### What is the age rating for E-Calc USA?

E-Calc USA has an age rating of 4+. This indicates it is suitable for a broad audience, though its professional utility is targeted towards adults in the electrical trades.

## Version history (last 5 releases)

### 1.2.0 — 2026-04-03

- Updated to the 2026 NEC.

### 1.1.0 — 2025-06-29

- Added update sheet to provide in-app update log.

### 1.0.8 — 2025-03-22

- Added multi-column support for iPad and Mac.

### 1.0.7 — 2024-05-22

- Added ability to duplicate panel legends.

### 1.0.6 — 2024-05-20

- Added ruler diagram to spacing module.
- Added cumulative measurements to spacing module.

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## More apps by Snappy Appz Inc.

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All apps by Snappy Appz Inc.: https://appshunter.io/developer/375591377

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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 2026-06-08.*