Electrical Calculator Pro is a professional electrical engineering toolkit designed for electricians, electrical engineers, technicians, contractors, maintenance professionals, and students. Perform fast, accurate electrical calculations anywhere with 18 powerful calculators, built-in NEC 2023 references, detailed formulas, visual guides, and complete offline functionality—no internet required.
Whether you're working on residential installations, commercial projects, industrial maintenance, or studying electrical engineering, Electrical Calculator Pro helps you calculate with confidence using reliable formulas, professional reference tables, and industry-standard methods.
⭐ Professional Features
✓ 18 professional electrical calculators
✓ NEC 2023 code references integrated throughout the app
✓ Complete offline functionality
✓ Fast and accurate calculations
✓ Step-by-step formulas with calculation breakdowns
✓ Material You design with Dark, Light, and System themes
✓ Pin your favorite calculators
✓ Instant search across all tools
✓ Built-in electrical reference tables
✓ Interactive visual diagrams and illustrations
✓ No advertisements
✓ One-time purchase with full access
Included Electrical Calculators
• Ohm's Law Calculator
• Voltage Drop Calculator
• Power Calculator
• Wire Size Calculator
• Motor Full Load Current Calculator
• Transformer Calculator
• Conduit Fill Calculator
• Cable Tray Fill Calculator
• Grounding Calculator
• Short Circuit Calculator
• Service Load Calculator
• Power Factor Correction Calculator
• EV Charger Calculator
• Solar PV Calculator
• LED Resistor Calculator
• Resistor Color Code Calculator
• Capacitor Calculator
• Fuse Calculator
• Electrical Unit Converter
• NEC Reference Tables
Built for Professionals
Electrical Calculator Pro is designed to reduce time spent searching through multiple calculators, conversion charts, and electrical reference books. Every calculation is optimized for speed while providing clear formulas and supporting information to help verify your results.
Whether you're troubleshooting equipment, designing electrical systems, sizing conductors, calculating voltage drop, selecting transformers, or checking NEC references, everything is available in one easy-to-use application.
Smart Features
• Animated calculation results
• Formula substitution steps
• Favorite tools dashboard
• Dynamic Material You interface
• Dark Mode support
• Beautiful modern UI
• Electrical charts and diagrams
• Built-in E12 resistor table
• Standard fuse size reference
• NEC ampacity and grounding tables
• Fast local calculations
• No account required
• No internet connection required
Perfect For
• Electricians
• Electrical Engineers
• Electrical Technicians
• Maintenance Engineers
• Contractors
• Field Service Professionals
• Engineering Students
• Apprentices
• DIY Electrical Enthusiasts
Download Electrical Calculator Pro today and carry a complete professional electrical engineering toolkit in your pocket.
18 professional electrical calculators with NEC references. Fast & offline.