Visualizer is amazing
Love the conduit fill visualizer!
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About
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.
✓Ampacity calculations with derating
✓Voltage drop calculations
✓2D conduit fill visualizer
✓X-Ray conduit mode
✓Inspector-ready PDF reports
✓Offline-first calculations
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What's New in ConduitLab
1.03
May 8, 2026
This update improves voltage drop accuracy for larger wire sizes, refines the conduit fill visualizer, and fixes a display issue that could affect grounding conductor fill calculations.
MoreSubscription plans
ConduitLab Pro (Weekly)
Unlock Pro features, all wires, unlimited exports.
$1.997 Days
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FAQ
What is ConduitLab?
ConduitLab is a professional NEC electrical calculator designed for electricians, inspectors, contractors, and engineers. It offers features like ampacity, voltage drop, and conduit fill calculations, along with a 2D visualizer and PDF reporting.
Does ConduitLab have ads?
No, ConduitLab does not contain advertisements. The app is free to download and use, with optional in-app purchases for advanced features.
What calculations does ConduitLab offer?
ConduitLab offers core electrical calculations including ampacity with real-world derating, single-phase and 3-phase voltage drop, and NEC-based conduit fill limits. It also features a 2D visualizer for conduit layouts.
Can I generate reports with ConduitLab?
Yes, ConduitLab allows you to generate clean, professional electrical calculation reports in PDF format. These reports are suitable for documentation, submittals, and permanent records.
What features are unlocked in ConduitLab Pro?
ConduitLab Pro unlocks the full wire size range up to 2000 kcmil, 3-phase and exact voltage drop tools, the interactive 2D conduit fill visualizer, X-Ray mode, and unlimited PDF exports.
Is ConduitLab available offline?
Yes, ConduitLab is built for jobsite use and features offline-first calculations, meaning you can perform essential calculations without an internet connection.
What is the age rating for ConduitLab?
ConduitLab has an age rating of 4+ and is available on iPhone, iPad, and iPod devices.
How often is ConduitLab updated?
The latest version of ConduitLab is 1.03, which was last updated on May 8, 2026. Updates typically focus on improving features and reliability for field use.
