Southwire® Conduit Fill Calc

Name: Southwire® Conduit Fill Calc
Rating: 4.5 (741 reviews)
Author: Southwire Company

By: Southwire Company

Utilities

Features & Capabilities

Southwire Conduit Fill Calc is a practical NEC conduit sizing tool for electricians, engineers, and contractors. It calculates conduit fill percentage according to NEC guidelines—just select conduit type and size, specify conductors, and the app returns the fill percent.

With quick navigation and one-click email capability, you can share results instantly. Southwire, North America's leading wire and cable manufacturer, provides this utility to streamline conduit sizing and NEC compliance in everyday electrical work.

User Growth & Download Statistics

App Developer Tools Programming

By:

Southwire Company

Rating:

4.50

(741) 1 new ratings

Version:

2.3.1 Last updated: 2025-07-24

Version code:

876650931

Creation date:

2012-03-19

Compatible devices:

Size:

15.71MB

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-06

Compare stats and ranking:

Ranking

# 67,342 ▼ 4

Other platforms

Southwire® Conduit Fill Calc (v2.4.1)

184,993 4.04

(366)

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.

Developed by:

Southwire Company

Apple Apps Store

https://apps.apple.com/us/app/southwire-conduit-fill-calc/id509204523

Website:

http://www.southwire.com/apps

User Reviews

Users praise the app for fast, easy conduit-fill calculations and clear NEC indicators, especially useful for electricians and inspectors. However, repeated concerns include calculations not always aligning with NEC standards, lack of data-saving/retrieval features, and missing common wire types. Occasional bugs and UI changes (inputs being erased or harder to save) further impact reliability. Overall, a strong quick-calculation tool with notable reliability and data-management improvements needed.

Pros

Fast, quick calculations for conduit fill
Easy to use with a simple interface
Shows fill percentage and flags NEC compliance
Allows multiple wire sizes/types in one calculation
Handy tool for electricians and inspectors on iPhone

Cons

Accuracy can be inconsistent with NEC standards and may be unreliable
No easy way to save or retrieve a specific calculation or data set
Missing common conductor sizes/types (e.g., bare solid copper)

Recent reviews

My go to app for quick calculations

by Da*****, 2026-02-07

Love the app except I’ve had others check me after I’ve used and found a small deficiency of accuracy not severe

by Ta*****, 2025-10-25

The reason I say this is because we work with 0-10 lightning controls a lot, which means that without 16 & 18 awg, this utility is incomplete. Disappointing really…