AMPFieldKit

AMPFieldKit is a professional electrical calculator and field reference tool based on NEC guidelines and formulas, designed for electricians, technicians, engineers, and students. Built for real-world use, it delivers fast, accurate calculations and essential reference data in a clean, mobile-optimized interface — no internet connection, ads, or subscriptions required. Electrical Calculators: Power Calculator (DC, Single Phase, Three Phase) Voltage Drop Calculator Ampacity Calculator Power Factor Correction Motor Full Load Current (FLC) Transformer Calculators — Fault Current, Turns Ratio, Sizing, Buck/Boost Resistance Network Calculator (Series / Parallel / Mixed) Reactance Calculator (Capacitance / Inductance) Box Fill Calculator Conductors in Conduit Calculator Reference Tools: Interactive Ohm's Law Chart Weights & Measures Quick Reference Unit Conversions Thread & Tap Drill Tables (UNC / UNF / Metric) Material Properties Table Built for the Field Designed for one-handed use in demanding environments. Every calculation runs instantly and entirely on-device — no login, no tracking, no data collection of any kind. Privacy AMP Field Reference collects no personal data. No accounts. No analytics. Nothing leaves your device.