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About Electrician ProCalc

Electrician ProCalc is an offline calculation toolkit for electricians, technicians, apprentices, and contractors who need fast field-ready results without accounts, ads, or tracking.

Calculate common electrical values in seconds, check assumptions, save recent results, and keep useful references on your device.

Core tools:
• Voltage drop calculator
• Wire size estimator
• Ohm's law calculator
• Power, current, voltage, and resistance calculators
• Single-phase and three-phase power
• kW to amps and amps to kW
• kVA calculator
• Horsepower to amps
• Breaker and fuse helper
• Conduit fill calculator
• Energy consumption and cost calculator
• AWG to mm² conversion
• Electrical formulas and reference notes

Built for field work:
• Works offline
• No account required
• No ads
• No analytics
• No tracking
• Metric and imperial units
• Light and dark mode
• Local calculation history
• Favorites
• Clear formulas, assumptions, and warnings

Pro features unlock additional professional tools such as unlimited local history, projects, advanced calculators, custom presets, and export options.

Privacy:
All calculations are performed locally on your device. Saved calculations, settings, favorites, and projects are stored locally. The app does not collect personal data and does not use advertising or analytics SDKs.

Important:
Results are estimates based on the inputs and assumptions shown. Always verify final work against local electrical codes, manufacturer specifications, and professional requirements.