ElectricianFieldPro

Electrician Field Pro is a practical electrical calculation toolkit for electricians, electrical contractors, apprentices, field technicians, and engineers. Get fast, reviewable results for common electrical tasks, with clear inputs, assumptions, calculation steps, warnings, and reference context. Core calculations are available offline, so you can keep working when the jobsite connection is unreliable. FIELD TOOLS - Wire Size: screen conductor selections using ampacity and voltage-drop targets. - Voltage Drop: calculate voltage drop, load voltage, percentage drop, and compare conductor options. - Breaker / OCPD: screen calculated load and standard breaker selections. - Conduit Fill: check conductor fill against raceway limits. - Box Fill: estimate required volume, available volume, and spare or shortfall. - Motor: review operating current and starting-current estimates. - Panel Schedule: organize panel circuits, breaker ratings, and loads. - EV Charger and Generator: review common load and sizing scenarios. - Resistor Color: decode four-band resistor values. ELECTRICAL FORMULAS - Ohm's Law - Power and three-phase current - Transformer ratios - Series and parallel resistance - Voltage divider - Frequency and period - AC reactance - kVA and energy cost BUILT FOR FIELD WORK - Focused input screens for quick calculations - Single-phase and three-phase workflows - Copper and aluminum conductor options - US electrical units including AWG, kcmil, V, A, W, VA, kW, kVA, ohms, feet, and inches - NEC-referenced data where available - Calculation history and favorites - PDF report export and sharing - Clear distinction between calculated values, suggestions, warnings, and review items Electrician Field Pro helps you calculate, verify, explain, save, and share from one place. IMPORTANT Electrician Field Pro provides calculation aids and screening results. It is not a complete NEC code book and does not certify code compliance or replace the National Electrical Code, local amendments, manufacturer instructions, engineering judgment, permits, inspections, or site verification. Code-referenced data and calculation assumptions should be reviewed for the specific installation before work begins. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://hikoming.github.io/electricianfieldpro/privacy.html