ElectriCalc Pro vs VFD Cable Sizing Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- NEC compliant calculations
- Wire and conduit sizing
- Voltage drop calculations
- Motor full-load amps
- Ohm's Law solver
- Built-in help and tutorials
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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
VFD Cable Sizing Calc
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Use this simple tool to input relevant information for your installation of cable from VFD (variable-frequency drive) to Motor and it will select the proper size of cable for your installation.
Screenshots
Verdict
The clearest difference is in-app purchases: VFD Cable Sizing Calc at none against ElectriCalc Pro's 2. VFD Cable Sizing Calc also leads on update cadence (every 4 months vs every 10 months). ElectriCalc Pro's advantage is iOS requirement (14.0 vs 16.0). On price, ads and device support 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
Both are free to download. ElectriCalc Pro sells 2 in-app purchases, starting at $4.99 per month. VFD Cable Sizing Calc asks for nothing beyond the download.
ElectriCalc Pro ships an update every 10 months, VFD Cable Sizing Calc every 4 months. The most recent releases landed on September 19, 2026 and March 8, 2026 respectively.
| Parameter | ElectriCalc Pro | VFD Cable Sizing Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (354 ratings) — better | — |
| Positive reviews | 78.1% of reviews | — |
| Number of ratings | 354 — better | — |
| Update frequency | Every 10 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 29 MB | 5 MB |
| Age rating | 12+ | 17+ |
| Developer | Calculated Industries | Southwire Company |
In-app purchases
ElectriCalc Pro
- 1 Month Full Access7 Days trial$4.991 Month
- 1 Year Full Access7 Days trial$39.991 Year
VFD Cable Sizing Calc
No in-app purchases
Questions
Is ElectriCalc Pro free?
Is VFD Cable Sizing Calc free?
Do ElectriCalc Pro or VFD Cable Sizing Calc have ads?
Which is updated more often, ElectriCalc Pro or VFD Cable Sizing Calc?
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