VoltForge

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Everyone
5+
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Content rating
Everyone
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About this app

📖 NEC QUICK REFERENCE
20 searchable NEC 2023 sections — always offline:
Working Clearances • Box Fill • GFCI • AFCI • Breaker Sizing • Feeder Sizing • Grounding & Bonding • Service Entrance • Conduit Fill • Load Calculations • Motor Calculations • Panelboard Rules • Transformers • Torque Specs • and more.

💼 JOB ESTIMATOR + PDF EXPORT
Material list with markup, labor, permit fee, and tax. Generates a professional PDF with company info, customer details, scope of work, full line items, and signature blocks. Share via email or any share sheet.

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✅ WHY ELECTRICIANS CHOOSE VOLTFORGE
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✔ NEC 2023 — actually current code, not years-old data
✔ Light & dark mode — easy on the eyes in any environment
✔ Fraction and feet/inches input — built for how electricians measure
✔ No ads, no subscription — Pro is one purchase, forever
✔ Large tap targets — designed for gloved hands
✔ Fully offline — works anywhere, no signal needed
✔ No other electrician app has a job estimator with PDF export

All calculations are for planning purposes only. Always verify with your local AHJ and applicable code amendments.
⚡ NEC 2023 calculators + job estimator with PDF. Built for the field.
Updated on
Aug 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
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What’s new

Initial release of VoltForge - Field Calculator & NEC Reference.

Includes:
- Ohm's Law & Voltage Drop Calculator
- Wire Ampacity Table with derating and temperature correction
- Fraction Calculator
- Conduit Fill Calculator with jam ratio
- Conduit Bender - all 6 bend types
- Wire Pull Tension Calculator
- Transformer Wiring Diagrams
- NEC Quick Reference - 20 sections
- Job Estimator with PDF export
- Light and dark mode