Terms of Use

EngineeringFormula's calculators and reference content are provided for personal, educational, and professional-reference use. You're welcome to use the results in your own work, coursework, or projects.

Calculators on this site are built and tested carefully - see Accuracy & Methodology - but results are provided "as is," without warranty of any kind, express or implied, including any warranty of fitness for a particular purpose. Read the Engineering Disclaimer for what these calculations are, and are not, meant to be used for.

Calculator results can support learning, estimating, and early-stage checks, but they are not permits, stamped calculations, product approvals, or a substitute for applicable codes, standards, manufacturer instructions, or qualified professional judgment. You are responsible for deciding whether a result is appropriate for your specific project and jurisdiction.

To the fullest extent permitted by law, EngineeringFormula is not liable for any loss or damage arising from your use of, or reliance on, this site's calculators, results, or content, including decisions made using them.

Don't attempt to disrupt, overload, or gain unauthorized access to this site or its infrastructure, scrape or republish the site's content at scale without permission, or use the site for any unlawful purpose. We reserve the right to restrict access for use that violates these terms.

The site's design, original written content, and calculator implementations are the property of EngineeringFormula. The underlying engineering and physics formulas themselves are standard, publicly known relationships and are not owned by anyone - what's original here is how they're presented, verified, and implemented.

Calculators, content, and these terms may change over time as the site grows and improves. Material changes to these terms will update the "Last updated" date above.

Questions about these terms can be sent through the Contact page.