Comparison

ElectriCalc Pro vs ConduitLab

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

Head to head
About

ElectriCalc Pro

This app provides electricians and electrical professionals with a powerful tool for performing complex calculations based on the latest National Electrical Code (NEC). It offers solutions for wire sizing, voltage drop, conduit sizing, and motor calculations, saving time and ensuring code compliance.

Highlights
  • NEC compliant calculations
  • Wire and conduit sizing
  • Voltage drop calculations
  • Motor full-load amps
  • Ohm's Law solver
  • Built-in help and tutorials
Features
Read full description

FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. Electrical Contractors, Designers, Electricians, and Lighting Specialists solve tough electrical calculations in seconds and deliver those solutions in conformance with the latest NEC®. The ElectriCalc Pro electrical code calculator is compliant with 2023, 2020, 2017, 2014, 2011, 2008, 2005, 2002, 1999, and 1996 NEC®. The official US-based National Electrical Code® (NEC) ElectriCalc Pro from Calculated Industries for iOS is a full-featured emulation of our popular #5065/#5070 models. ----- Full Functionality of our Pro Handheld Calculator ----- • Experience the power of a professional calculator on your iPhone. • ElectriCalc Pro replicates all features & solutions of our top-rated handheld model. ----- Built-in Help & Tutorials ----- • Press and hold any key for clear definitions, examples, and usage guides. • A complete user manual is also available. ----- Complete Electrical Reference Tool ----- • Save time, trouble, and money with ElectriCalc Pro's comprehensive electrical reference data. • All the info you need for calculations and code compliance is built into one app. The ElectriCalc Pro is a complete electrical reference tool that will save time, trouble, and money. ElectriCalc Pro Solutions: • Wire Sizes • Voltage Drop • Conduit Sizing • Motor Full-Load Amps • Fuse and Breaker Sizes • Service and Equipment Grounding Conductor Sizes • Parallel Resistance • Ohm’s Law Calculations – enter any two values to solve for the third • Circular MILS wire sizes ElectriCalc Pro Calculations: • Work directly in and convert between Amps, Watts, Volts, Volt-Amps, kVA, kW, PF% and EFF%, and DC Resistance • Calculate wire sizes per NEC® 310-16 and 310-17; Copper or aluminum, 3Ø/1Ø, 60°C, 75°C, 90°C insulation ratings and 100% or 125% of ampacity. Can also adjust wire sizes for ambient temperatures other than 30◦ C and more than three wires in a raceway • Integrated voltage drop solutions. Find minimum VD wire size, maximum length for any given wire size, drop percentage, actual number and percentage of Volts dropped • Conduit sizing for 12 types of conduit. Plus, it gives fill percentages, cross-sectional areas, remaining areas, and more • Find Motor Full-Load Amps per current NEC®. Works in 1Ø and 3Ø with the newly expanded tables for 3Ø induction (to 500 hp), synchronous (to 200 hp), and DC motors per NEC® 430-247, 430- 248 and 430-250 • Calculates Fuse and Breaker Sizes per NEC® 430-52 • Parallel and derated wire sizing • Parallel Resistance • NEC Table number displays when performing Wire Size calculations • Sizes overload protection per NEC® 430-32 • Automatically finds NEMA starter sizes • Calculates service and equipment grounding conductor sizes per NEC®: 250-122 and 250-66. • Enter BTU to find Kilowatts per Hour • Enter Kilowatts per Hour to find BTU • Ohm’s Law Calculations – enter any two values to solve for the third • Enter, solve, or convert to Circular MILS wire sizes Note: Electrical math is universal. However, code-based sizing solutions are based on the US National Electrical Code® (NEC); users in other countries should check with their local Code Officials for applicability. SUBSCRIPTION INFORMATION The first seven days are free. Subscriptions offered will automatically renew at the end of the chosen period. Upon purchase confirmation and completion of a free trial, payment will be charged to your Apple account. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS ElectriCalc(TM) and Calculated Industries® are trademarks and registered trademarks of Calculated Industries, Inc. Copyright 2024

About

ConduitLab

This app provides professional NEC electrical calculations for electricians and engineers. It features ampacity, voltage drop, and conduit fill calculations, with a unique 2D visualizer to see conductor layouts. Generate inspector-ready PDF reports for documentation and record-keeping.

Highlights
  • Ampacity calculations with derating
  • Voltage drop calculations
  • 2D conduit fill visualizer
  • X-Ray conduit mode
  • Inspector-ready PDF reports
  • Offline-first calculations
Features
Read full description

ConduitLab is a professional NEC electrical calculator for electricians, inspectors, contractors, and engineers. It combines ampacity, voltage drop, conduit fill, wire sizing, PDF reports, and an interactive 2D conduit fill visualizer in one field-ready app. SEE CONDUIT FILL BEFORE YOU PULL Most electrical calculators only show a percentage. ConduitLab helps you see the layout. Use the 2D conduit fill visualizer to view conductors inside the raceway, check fill percentage, spot tight layouts, and use X-Ray mode for a clearer look at packed conduits. Plan pulls, review layouts, and catch conduit fill problems before the wire is already in the pipe. CORE ELECTRICAL CALCULATIONS Ampacity — real-world derating applied Calculate wire sizing with ambient temperature correction, rooftop exposure adjustments, terminal temperature limits, conductor count effects, and continuous-load factors applied together. Voltage Drop — catch issues before inspection Run single-phase and 3-phase voltage drop calculations for branch circuits and feeders, including advanced options for long runs, larger conductors, and field conditions. Conduit Fill — visual and code-based Apply NEC Chapter 9 fill limits while using the 2D conduit fill visualizer to better understand how conductors fit inside the conduit. INSPECTOR-READY PDF REPORTS Generate clean, professional electrical calculation reports for documentation, submittals, inspections, and permanent records. Reports can include: • Project inputs and calculated results • NEC-based citations by edition • Ampacity, voltage drop, and conduit fill summaries • Jobsite-ready calculation records • Clean documentation for field review LITE AND PRO OPTIONS ConduitLab includes a Lite mode for common residential and light commercial calculations. ConduitLab Pro unlocks: • Full wire size range up to 2000 kcmil • 3-phase and exact voltage drop tools • Interactive 2D conduit fill visualization • X-Ray conduit visualizer mode • Unlimited PDF exports • Expanded professional features BUILT FOR JOBSITE USE • Offline-first calculations • Fast, repeatable results • No account required • Designed for electricians, inspectors, contractors, and engineers • Built for real field workflows, not generic desktop math IMPORTANT DISCLAIMER ConduitLab is a reference and documentation tool only. It does not provide engineering services or code-compliance certification. Users are responsible for verifying all results and complying with applicable electrical codes, local amendments, and Authority Having Jurisdiction requirements. Subscriptions unlock advanced features and unlimited PDF exports. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

ElectriCalc Pro4 screens
ConduitLab4 screens

Verdict

The call

The clearest difference is update cadence: ConduitLab at every 2 months against ElectriCalc Pro's every 10 months. ConduitLab also leads on review sentiment (100% vs 78%). ElectriCalc Pro's advantage is ratings volume (364 vs 3). On price, rating, 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

Both are free to download. ElectriCalc Pro sells 2 in-app purchases, starting at $4.99 per month and ConduitLab sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for ElectriCalc Pro against 5.0 for ConduitLab. That said, the two scores are not equally well evidenced: ElectriCalc Pro has 364 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 78% of ElectriCalc Pro's written reviews are positive against 100% of ConduitLab's.

UpkeepUpdate frequency

ElectriCalc Pro ships an update every 10 months, ConduitLab every 2 months. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
ElectriCalc Pro versus ConduitLab: the parameters behind the verdict, then further details
ParameterElectriCalc ProConduitLab
PriceFreeFree
Rating4.9 (364 ratings)5.0 (3 ratings) — better
Positive reviews78.1% of reviews100.0% of reviews — better
Number of ratings364 — better3
Update frequencyEvery 10 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size29 MB58 MB
Age rating12+4+
DeveloperCalculated IndustriesTeleios AI, LLC

Customer experience

ElectriCalc Pro

All ratings354 ratings
Positive98.9%
Neutral0.3%
Negative0.8%
Written reviews32 reviews
Positive78.1%
Neutral6.3%
Negative15.6%

ConduitLab

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

ElectriCalc Pro

Subscriptions2
  • 1 Month Full Access7 Days trial$4.991 Month
  • 1 Year Full Access7 Days trial$39.991 Year
3 purchases

ConduitLab

Subscriptions3
  • ConduitLab Pro (Weekly)$1.997 Days
  • ConduitLab Pro (Monthly)$4.991 Month
  • ConduitLab Pro (Yearly)7 Days trial$34.991 Year

Questions

Is ElectriCalc Pro free?
ElectriCalc Pro is free to download, with in-app purchases available.
Is ConduitLab free?
ConduitLab is free to download, with in-app purchases available.
Which has better reviews, ElectriCalc Pro or ConduitLab?
ConduitLab is rated higher. ElectriCalc Pro averages 4.9 out of 5 from 364 ratings, while ConduitLab averages 5.0 from 3 ratings.
Do ElectriCalc Pro or ConduitLab have ads?
Neither ElectriCalc Pro nor ConduitLab shows ads.
Which is updated more often, ElectriCalc Pro or ConduitLab?
ElectriCalc Pro ships an update every 10 months, and ConduitLab every 2 months. Most recently, ElectriCalc Pro was updated on October 23, 2026 and ConduitLab on October 15, 2026.

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