Kopperfield vs ConduitLab

Save time and money. Get ready for permits and projects with faster and easier design tools from Kopperfield, including load calcs, line diagrams, panel schedules, and more. Once logged into your Kopperfield account, you'll enjoy our: * Load calculator: Easy-to-use interface pre-loaded with common appliances and their standard output values from the National Electrical Code. Add information on the property and your calculation will automatically update. Supports both commercial and residential calculations, as well as the Standard (NEC Article 220 Part III), Optional (NEC Article 220 Part IV), and 2026 Standard (NEC Article 120 Part III) methods. * Single line diagram tool: Contains dozens of common templates and electrical symbols to make it easy to generate new diagrams and share them with your team. View diagrams from any device and create new templates on tablet or desktop for your whole team to use. * Panel schedules: Includes tools to complete panel schedules and create labels for electrical panels. Drag-and-drop interface makes it easy to arrange and customize circuits for both split-phase and three-phase projects. * NEC chatbot: Custom chatbot with advanced search capabilities to quickly reference specific sections of the 2017, 2020, or 2023 National Electrical Code. Includes the following features: * Fast PDF outputs: instantly generate a downloadable, one-page PDF report of your load calc, line diagram, or panel schedule to share with inspectors and customers * Smart property data: enter the property address and we’ll pull in the square footage for any customer project or electrical load calculation * AI panel photo processing: upload a photo of an electrical panel to automatically add items to your load calculation or panel schedule * Team dashboard: store your team's projects and documents in one place for easier management, access, and review *Single and three phase options: use a variety of nominal voltages for residential and commercial building types, including: 120/240V, 120/208V, 120/240V, 208Y/120V 3Ø, 240V 3Ø Delta, 240V 3Ø Hi-leg Delta, 347V 3Ø Delta, 480Y/277V 3Ø, 480V 3Ø Delta, 600Y/347Y 3Ø, 600V 3Ø Delta. * Standard scenarios: generate load calcs for scenarios including single family homes (standard and optional methods), multi dwelling units (i.e., duplex, triplex, quad), 120/208v (three-phase power) dwellings, accessory dwelling units and additions, commercial occupancy types, and heat pumps * Common appliance defaults: choose from a pre-loaded list of common appliances and standard output values that you can adjust for every load calculation * EV charger inputs: include EV charger values to any load calculation, essential for modern homes

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/