Comparison

Electrical Calc Pro vs Southwire® Conversion Calc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Electrical Calc Pro

This professional electrical application calculates common electrical problems, including wire sizing, conduit sizing, and fusing based on the Canadian Electric Code. It offers advanced features for motor loads, transformers, feeders, and voltage drop calculations, making it an essential tool for electricians and engineers.

Highlights
  • Wire and conduit sizing
  • Motor and transformer load calculations
  • Voltage drop calculations
  • Panel legend creation and export
  • Allowable ampacity and derating
  • Box fill calculations
Features
Read full description

E-Calc Pro is a professional electrical application for calculating many common electrical problems. This app is an essential tool for all electricians and electrical engineers. Unlike other similar apps E-Calc not only calculates simple formulas but returns code results including wire sizing, conduit sizing, fusing, overload size, ground and bond size and much more based on the Canadian Electric Code. The features of this app are too long to list but here are a few of the key ones; - Basic construction calculator allows you to easily divide rooms for lighting in imperial or metric measurements. - Calculate any single motor or multiple motor load and get maximum overcurrent, maximum overload, minimum wire, minimum pipe, and minimum bond wire size. Store a schedule of motors for easy retrieval. - Calculate any transformer size and get KVA, FLA, pipe size, fuse and breaker size, bond size and ground size, on both primary and secondary. Easily choke down the transformer and get appropriate results for the modified demand load. - Calculate feeders for wire size, conduit size and voltage drop simultaneously. - Create panel legends of any size and easily export or print them right from your device. - Calculate the allowable ampacity of any wire type and deration situation. - Calculate maximum number of similar sized wires in a given pipe size. - Calculate pipe size required for a list of any number, size, and type of wire. - Calculate required ground and bonding sizes. - Easily calculate complicated voltage drop calculations. Get results for percentage voltage drop as well as maximum lengths of runs and wire size. Derating is also supported. - Calculate minimum burial depths for any situation including special situations including mechanical protection, under slab, and rock encased. - Calculate any box fill situation in mL and cubic inch. - Calculate recommeneded torque settings for all varieties of lugs and terminations. - Convert many common units. - Find NEMA codes and specs of receptacles. - Calculate residential single dwelling service sizes. - Easily access in app support with quick links to your tablet's email.

About

Southwire® Conversion Calc

This utility app facilitates conversions between copper and aluminum electrical wiring. It allows users to calculate pricing, unit of measure, conversion factors, and weight based on product length. The app comes preloaded with numerous cable types for easy calculation.

Highlights
  • Copper to aluminum conversion
  • Aluminum to copper conversion
  • Pricing unit of measure calculation
  • Conversion factor calculation
  • Weight per product length calculation
  • Preloaded cable data
Features
Read full description

Southwire's Conversion Calculator helps to convert copper to aluminum or aluminum to copper, pricing unit of measure, conversion factor and weight per product length. Preloaded with many cables for calculation.

Screenshots

Electrical Calc Pro4 screens
Southwire® Conversion Calc4 screens

Verdict

The call

The clearest difference is review sentiment: Electrical Calc Pro at 60% against Southwire® Conversion Calc's 0%. Electrical Calc Pro also leads on rating (5.0 vs 4.2) and update cadence (every 5 weeks vs every 4 months). Southwire® Conversion Calc's advantage is price (Free vs $19.99) and ratings volume (5 vs 1). On ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Southwire® Conversion Calc is free to download; Electrical Calc Pro costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Electrical Calc Pro holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Southwire® Conversion Calc has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 60% of Electrical Calc Pro's written reviews are positive against 0% of Southwire® Conversion Calc's.

UpkeepUpdate frequency

Electrical Calc Pro ships an update every 5 weeks, Southwire® Conversion Calc every 4 months. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

Scorecard8 real differences · 2 level
Electrical Calc Pro versus Southwire® Conversion Calc: the parameters behind the verdict, then further details
ParameterElectrical Calc ProSouthwire® Conversion Calc
Price$19.99Free — better
Rating5.0 (1 ratings) — better4.2 (5 ratings)
Positive reviews60.0% of reviews — better0.0% of reviews
Number of ratings15 — better
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS8.0 — better16.6
Further details — not scored
Size22 MB7 MB
Age rating4+4+
DeveloperSnappy Appz Inc.Southwire Company

Customer experience

Electrical Calc Pro

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

Southwire® Conversion Calc

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Electrical Calc Pro

No in-app purchases

None

Southwire® Conversion Calc

No in-app purchases

Questions

Is Electrical Calc Pro free?
Electrical Calc Pro costs $19.99, with no in-app purchases.
Is Southwire® Conversion Calc free?
Southwire® Conversion Calc is free to download, with no in-app purchases.
Which has better reviews, Electrical Calc Pro or Southwire® Conversion Calc?
Electrical Calc Pro is rated higher. Electrical Calc Pro averages 5.0 out of 5 from 1 ratings, while Southwire® Conversion Calc averages 4.2 from 5 ratings.
Do Electrical Calc Pro or Southwire® Conversion Calc have ads?
Neither Electrical Calc Pro nor Southwire® Conversion Calc shows ads.
Which is updated more often, Electrical Calc Pro or Southwire® Conversion Calc?
Electrical Calc Pro ships an update every 5 weeks, and Southwire® Conversion Calc every 4 months. Most recently, Electrical Calc Pro was updated on October 5, 2026 and Southwire® Conversion Calc on October 2, 2026.

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