NEC Field Calc - Wire & Drop

「NEC Field Calc」· Offline NEC field calculators for voltage drop, wire size, and conduit fill—built for electricians who work where cell signal dies. 「Numbers you can show on the job—without a subscription.」 「NEC Field Calc」keeps the math on your phone: Ohm’s Law, voltage drop with Pass/Warn, reverse wire sizing, and Chapter 9-style conduit fill checks. Free tools stay free. Pro unlocks the field pack with a one-time lifetime purchase—no account, no ads, no cloud. Results are estimation aids; always verify against the NEC edition your AHJ adopts and manufacturer data before you install. ——— Key Features ——— 1 Ohm’s Law · Enter any two of volts, amps, and ohms to solve the rest plus watts when you need a quick sanity check on a ladder or in a panel. · Large number fields and live results stay readable with gloves so you are not hunting tiny calculator keys mid-task. · Save a short…