This calculator helps electricians and contractors quickly determine the minimum safe wire gauge for carrying a given electrical load, based on NEC table 310.16. It accounts for ambient temperature, insulation type, and optionally wire run length. This helps ensure installations are safe, code-compliant, and efficient.
Disclaimer: This tool is provided for informational and educational purposes only. Calculations are based on simplified interpretations of NEC Table 310.16 and standard assumptions (copper wire, 3 conductors, typical conditions).
Always consult a licensed electrician and your local electrical code before selecting wire sizes or performing any electrical work. The developer of this tool is not a certified electrician and assumes no liability for its use.