By using this site, you agree to these terms. If you do not agree, do not use the site.

Informational tools

The calculators, validators, explanations, and results are provided for informational and convenience purposes. They are early planning aids, not engineering, legal, safety, regulatory, quality, procurement, or professional advice. Outputs can contain errors because of software defects, incorrect inputs, simplified assumptions, rounding, or factors the tools do not model.

Your responsibility

You are responsible for inputs, interpretation, and decisions. Independently verify important results with appropriate professionals, suppliers, standards, approved drawings, physical samples, tests, and production trials. Do not rely on a tool result alone to order materials, approve specifications, claim compliance, or release a package for transport.

Permitted use

You may use the public tools for lawful planning and evaluation. Do not interfere with the site, attempt unauthorized access, introduce malicious code, overload the service, misrepresent results, or use it in a way that violates another person’s rights or applicable law.

Availability and changes

Tools and content may be corrected, changed, suspended, or removed without notice. There is no promise that a particular tool or result will remain available.

No warranties

To the fullest extent permitted by law, the site and all outputs are provided “as is” and “as available,” without warranties or conditions of any kind, whether express, implied, or statutory, including accuracy, completeness, reliability, availability, merchantability, fitness for a particular purpose, title, and non-infringement.

Limitation of liability

To the fullest extent permitted by law, the site operator will not be liable for indirect, incidental, special, consequential, exemplary, or punitive loss, or for lost profits, revenue, data, business, opportunity, materials, production time, or goodwill arising from use of or inability to use the site. Nothing in these terms excludes or limits liability or rights that cannot lawfully be excluded or limited.

Legal rights

Consumer and other non-excludable statutory rights remain unaffected. No jurisdiction, legal entity, certification, endorsement, or partnership is represented by these terms.