Conduit – Electrician Calc

Built in 2026, not 2012. Conduit is the calculator and reference toolkit for working electricians who are tired of plastic-calculator emulators, ads mid-job, and per-NEC-edition upsells.

One-time $14.99. Full Pro toolkit. All NEC editions. Forever.

FREE CALCULATORS
• Ohm's Law / Power Wheel – V, I, R, P for 1φ, 3φ, kVA/HP/BTU
• Unit Converter – Current, Voltage, Power, Length, AWG, Temperature
• Wire Color Code – US (NEC) & Canadian (CEC) standards
• Resistor Color Code – 4/5/6 band decoder

PRO CALCULATORS ($14.99 one-time)
• Voltage Drop – 1φ / 3φ / DC with reverse-solve for minimum conductor
• Wire Size / Ampacity – NEC 310.16 with temperature & fill derating
• Conduit Fill – Ch.9 Tables 1/4/5, multi-conductor mix
• Conduit Bending – Offset, saddle, rolling offset, 90° stub

REFERENCE TABLES (free)
• NEC 310.16 Ampacity (60/75/90°C, Cu & Al)
• Ch.9 Table 4 – Conduit areas with 40/31/53% fill
• Ch.9 Table 8 – Conductor properties
• Motor FLC Tables (430.248, 430.250)
• Derating – 310.15(B)(1) temperature & 310.15(C)(1) bundling
• Grounding – Table 250.122 EGC & Table 250.66 GEC
• Bending multipliers & shrink

WHY CONDUIT?
- No ads. Ever.
- No accounts. No sign-in.
- No per-NEC-edition upsells – 2017, 2020, 2023 all included
- No subscription required – $14.99 once, forever
- 7-day free trial of Pro
- 100% offline – works on any jobsite
- Dark mode + Jobsite Red mode
- Glove-friendly tap targets

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