Terms of use

By using this website, you agree that its calculators and articles provide educational and planning-level estimates only. Results depend on the information supplied, model applicability, measurement quality, and unit conventions.

No professional services

The website does not provide engineering, fire-protection, plumbing, legal, or code-compliance services. Qualified professionals and authorities having jurisdiction must review decisions involving safety, equipment selection, or regulated systems.

Acceptable use

You may use the tools for lawful personal or professional evaluation. You may not interfere with site operation, misrepresent results, or redistribute substantial portions as a competing service.

Liability

The site is provided without warranties. To the extent permitted by law, PSI to GPM is not liable for losses arising from reliance on estimates or third-party services.