Terms of Use

Last updated November 11, 2026

By using WhatSizeWire you agree to these terms.

Estimates only

The calculators provide estimates for planning and education. They are not professional electrical or engineering advice. Confirm results with a qualified professional and with the codes, rules and suppliers that apply to your situation before you act on them.

No warranty

The site is provided as is, without warranties of any kind.

Limitation of liability

WhatSizeWire is not liable for losses arising from use of the site.

Content

You may link to any page. Copying substantial parts of the site requires permission.