Drag the duct. Watch your marks move — in trade fractions, shrink included. Plus wire size, voltage drop, conduit fill and eight more answers in under ten seconds.
Type the problem the way you'd say it — "wire size 60 amps" — and you're there. Big controls that work with gloves on.
Offsets, 3-pt & 4-pt saddles, stubs, parallel runs, segment bends — with live diagrams.
Termination limits, ambient correction, conductor count — names what governs.
1φ & 3φ, K-factor or exact resistance, pass/fail against your target.
EMT to LFMC, mixed sizes — finds the smallest size that fits.
Full counting rules: yokes, clamps, grounds, fittings.
FLC lookup, 125% conductors, breaker & fuse sizing.
kVA and primary/secondary current, both phases.
EGC by overcurrent device, GEC by service size.
The power wheel — any two values solve the rest.
Corrected ampacity live as ambient and count change.
Standard-method service sizing for residential.
AWG ↔ mm², kVA ↔ amps, temperature, length.
Every table value in the app was hand-checked against the published engineering data — then checked again by independent reviewers re-deriving the math from scratch.
Every calculator runs against hand-worked reference cases on every build. If a number drifts, the build fails before it ever reaches your phone.
Marks come out the way you read a tape — 31-5/8″, not 31.6087. Exact trig underneath, sixteenths on the screen.
Every answer has a "How was this calculated?" sheet: the formula, the steps with your numbers plugged in, and the assumptions it made.
Check it against your code book once — that's the point. Apprentices learn from it. Journeymen verify with it. Inspectors respect it.
So does every journeyman — for the daily stuff. This is for the 4-point saddle you bend twice a year, the box fill an inspector questions, and the voltage drop on a 300-foot run you'd rather not redo.
Tap "How was this calculated?" on any answer and check it against your book — the formula and every step are right there. Every constant in the app was verified against published engineering data and is locked by automated tests.
No. $4.99 once at launch. Every calculator, every future update, yours for good. No account, no ads, no tracking — your saved calculations never leave the phone.
No, and it doesn't try to. VoltWork computes from standard engineering formulas — it contains no code text. Results are an aid for qualified people; you verify against the edition your jurisdiction has adopted.
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