Voltbook: Electric Circuit

Voltbook: Electric Circuit

NEC tables for electricians

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Details

  • Released
  • Updated
  • August 5, 2026
  • August 5, 2026

Features

Voltbook: Electric Circuit screenshot #1 for iPhone
Voltbook: Electric Circuit screenshot #2 for iPhone
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About

Voltbook is a voltage drop calculator and circuit calculator that puts trustworthy electrical answers in your pocket, right where the work happens. Every result shows the formula and the assumptions behind it, so you can check the math instead of guessing. Alongside the calculators, Voltbook bundles an NEC code book of reference tables for electricians so a code-edition-aware reference is always one tap away, whether you're sizing conductors or checking box fill. - Voltage drop, ampacity, conduit fill, box fill, and breaker sizing in seconds - NEC reference tables that follow the code edition you pick, so answers match your inspector - Share or export any result with the formula, inputs, and edition stamped on it - Works fully offline, in the basement or on the roof Voltbook is a calculation aid for licensed professionals. Always verify results against the current adopted code in your area. Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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What's New in Voltbook

1.0

August 5, 2026

1

In-App Purchases

$9.99

Voltbook Lifetime

Unlock the export layer — formula-stamped PDF

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