The following calculators can be used by electrical contractors, designers, engineers and electricians to solve electrical calculations in accordance with the National Electrical Code (NEC).

The calculator descriptions are summaries or definitions from the NEC. To see the actual NEC text visit NFPA.org. You can purchase a copy of the standard or utilize the free access as shown at the NFPA website.

This WEB site is designed to provide some guidance calculations for electrical engineering concepts. These calculations are for educational purposes only. Use this site at your own risk. By using this site you are agreeing to indemnify and to hold harmless the owners of this WEB site.

If you would like more information on any of the calculations or would like further engineering services please use the contact us form.