Terms of Use

By using WattCalcs you agree to these terms. The site is operated by Redbit S.r.l.s., Viale della Grande Muraglia 494, 00144 Rome, Italy (VAT IT15237911001).

Estimates only — no professional advice

The calculators provide estimates for planning and education, computed from your inputs and standard engineering values. They are not professional electrical, engineering or design advice and are not a substitute for a licensed electrician, a Professional Engineer or your authority having jurisdiction (AHJ). All electrical work must comply with the NEC edition adopted by your jurisdiction and all local codes.

No warranty

The site and its content are provided "as is", without warranty of any kind, express or implied, including fitness for a particular purpose. We do not warrant that the results are error-free or suitable for any specific installation.

Limitation of liability

To the maximum extent permitted by law, Redbit S.r.l.s. accepts no liability for any loss or damage arising from the use of, or reliance on, the calculators or content. You are responsible for verifying all results with a qualified professional before acting on them.

Intellectual property

The content, formulas presentation and code are owned by the operator. You may use the calculators for personal and professional planning; you may not republish the site wholesale.