NEC Electrician Calculator

NEC Pro — The smartest electrical calculator for professionals.

🔌 6 NEC-COMPLIANT CALCULATORS
• Voltage Drop — with visual gauge & NEC 210.19(A) warning
• Conduit Fill — NEC Chapter 9 Table 4 compliance check
• Wire Size — NEC 240.4(D) & 310.16 lookup
• Residential Load — NEC 220 standard method
• Motor Calculator — NEC Table 430.250 FLA + breaker sizing
• Ohm's Law — voltage, current, resistance, power

🎤 VOICE INPUT — HANDS-FREE
Wear gloves? Just tap the mic and say the number. Works in all 7 languages. No internet required — uses your device's built-in speech engine. Zero cost.

🔵 BLE CLAMP METER
Connect your Bluetooth clamp meter wirelessly. Live readings auto-fill voltage and current fields. No manual typing.

📸 NAMEPLATE SCANNER
Point your camera at a motor nameplate → HP, voltage, FLA detected instantly via OCR. Values pre-fill the calculator form. You verify before calculating.

📏 STEP DISTANCE MEASURE
Walk along a cable run, phone counts your steps. Calibrate step length once. Distance auto-fills the voltage drop calculator.

📐 METRIC / IMPERIAL
Toggle between ft/m and in/mm with one tap. Calculations stay NEC-accurate internally.

📊 HISTORY & EXPORT
Every calculation saved automatically. Export as CSV. Generate professional PDF reports with NEC references.

🌍 7 LANGUAGES
English, Türkçe, Deutsch, Français, Español, Русский, العربية

⚡ WHY NEC PRO?
✓ No subscription — one-time unlock
✓ Works 100% offline
✓ NEC 2023 tables (human-verified)
✓ Dark theme for panels & low-light
✓ Features no competitor has: voice, BLE, scanner, AR

Recent changes:
- New Settings screen with subscription status, manage subscription, Terms of Use and Privacy Policy
- Keyboard now closes after Calculate so results are visible