Terms of use

Last updated: October 25, 2026

Operator

wiresizes.com is operated by Moving Data Systems d.o.o., Smolnik 62, 2342 Ruše, Slovenia (company registration number 9041273000, VAT ID SI94001154). Contact: contact@wiresizes.com.

What the site provides

Free reference tables and calculators about electrical conductors. Code values are quoted from the NEC edition named on each page; physical values come from NIST publications; calculators apply the formulas shown on their pages.

No professional advice

Using this site does not create a professional relationship. The information is provided as is, without any warranty. Check every result against the code edition your jurisdiction enforces and the equipment's installation instructions. Where your jurisdiction requires a permit, an inspection or a licensed electrician, those requirements apply.

Liability

To the extent the law allows, Moving Data Systems d.o.o. is not liable for any loss that results from using this site.

Trademarks

NFPA 70®, National Electrical Code® and NEC® are registered trademarks of the National Fire Protection Association. wiresizes.com is not affiliated with or endorsed by NFPA.

Governing law

These terms are governed by the law of the Republic of Slovenia.