TradesMath

TradesMath puts eleven professional calculators in your pocket — built for electricians and plumbers who need fast, code-aware answers on site. **NO INTERNET REQUIRED.** Every calculator works with zero connectivity — basements, new construction, remote sites, dead zones: no signal is never a problem. ELECTRICAL (8 TOOLS) Ohm's Law · Voltage Drop · Conduit Fill · Ampacity · Box Fill · Residential Load Calculations · Motor Circuit (430) — each with the inputs you actually use in the field. PLUMBING (3 TOOLS) Pipe Volume · Rolling Offset · Head Pressure — the numbers you'd otherwise look up by hand. DUAL EDITION: NEC 2023 & 2026 The built-in Edition tab keeps calculations aligned with both NEC 2023 and NEC 2026 data, with source worksheets so you can trace every result. Switch editions to match the code cycle your jurisdiction enforces. When the code changes, TradesMath updates — you don't have to. BUILT FOR THE TRUCK, NOT THE OFFICE • 100% offline — no internet required, no account, no sync, no analytics, no tracking • Unit converter built in • Every result card includes a "not a substitute for the NEC" reminder — these tools support your judgment, they don't replace the code One purchase. Every calculator, every future update. No subscription. TradesMath is a professional reference tool. It is not affiliated with or endorsed by the NFPA, and no copyrighted standard text is reproduced — results reference table and section numbers for orientation only.