Electrical Calculators
Professional-grade electrical calculators for electricians. All calculations are NEC-compliant with built-in tables and formulas.
Get All Calculators in AppVoltage Drop Calculator
Calculate voltage drop for single-phase and three-phase circuits. NEC-compliant with 3% and 5% recommendations.
Wire Sizing Calculator
Size conductors using NEC ampacity tables. Supports all temperature ratings and derating factors.
Conduit Fill Calculator
Calculate conduit fill per NEC Chapter 9. Supports EMT, RMC, IMC, PVC, and FMC.
Arc Flash Calculator
Calculate incident energy, arc flash boundary, and required PPE per NFPA 70E and IEEE 1584.
Load Calculation
Calculate service size and panel loads using NEC Article 220 demand factors.
Motor Sizing Calculator
Size motor circuits including FLC, conductor, overload, and short-circuit protection per NEC 430.
Why Use Ampora Calculators?
Mobile-First
Designed for field use on your phone
NEC Built-In
All NEC tables and requirements included
Instant Results
Get answers in seconds, not minutes
AI-Powered
Ask questions about your calculations
More Ampora Features
All Calculators in One App
Download Ampora to get all 6 electrical calculators plus AI assistant, NEC code reference, and more. Free to try.
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