Terms of Use

Last updated: 13 October 2026. By using Conduitwise you agree to these terms. They are short because the site is simple: use it to plan and check, then confirm against the code your jurisdiction has adopted. Electrical work can injure or kill. Follow the code your jurisdiction has adopted, comply with local rules and hire a licensed electrician for installations.

What you may do

You may use the calculator and the tables to plan a conduit run, check a fill before a pull, teach, and print the result for your own use, as often as you like and without an account.

What you may not do

Do not sell the calculator or the tables as your own product, do not scrape the site in bulk, and do not copy the site’s code, layout or text and publish them as your own.

Your feedback

When you send a note through the feedback form you allow us to read it and, if it helps, act on it. We do not publish your note.

Names and standards

NEC and NFPA 70 are names of the National Fire Protection Association. Conduitwise is not affiliated with or endorsed by it. The tables are cited as sources; the code itself is the authority.

Accuracy and liability

Conduitwise is a planning tool, provided as it is, without a guarantee that a value is right for your installation or accepted by your inspector. To the extent the law allows, we are not liable for loss, damage or injury from using it. These terms do not name a court or country, and your rights as a consumer where you live are not affected.

Changes and contact

We may update these terms and will change the date at the top when we do. Questions: [email protected], or the contact page.

Frequently asked questions

Can I use the results on a job?

Use them to plan, then confirm against your adopted NEC edition and local rules.

Is Conduitwise affiliated with the NFPA?

No.

Can I copy the tables?

No. Please ask first.

Go back to Conduitwise or learn about the site.