Terms of Use
By using this site you agree to these terms. They are short and plain on purpose.
Acceptable use
You are welcome to use these calculators for personal and professional work. You may not attempt to disrupt the site, misuse it to harm others, or copy its content wholesale to republish as your own.
The results are estimates
The tools compute the geometric volume of a pipe from the values you enter and published nominal dimensions. Real installations vary — manufacturing tolerances, linings, scale, fittings, bends, fill level, temperature and pressure all affect the true figure. The results are engineering estimates for planning and information, not certified measurements.
No warranty
The site is provided "as is", without warranties of any kind, express or implied, including accuracy, fitness for a particular purpose or availability. While we take accuracy seriously and correct errors when we find them, we do not guarantee the results are error-free.
Limitation of liability
To the fullest extent permitted by law, we are not liable for any loss or damage arising from reliance on the site or its results. For any decision with safety, financial or regulatory consequences, verify against manufacturer data, the relevant standard and a qualified professional.
Third-party links
Pages may link to standards bodies, manufacturers and other references. Those sites are outside our control and have their own terms and privacy practices; a link is not an endorsement, and we are not responsible for their content or availability.
Availability
We aim to keep the site available and accurate, but we do not guarantee uninterrupted access and may update, suspend or withdraw any part of it without notice. Planned tools and guides described as forthcoming may change or not appear.
Intellectual property
The design, text and original calculators on this site are the property of the site operator and are provided for your use on the site. You may share links freely and use the results in your own work, but you may not scrape, republish or resell the site's content wholesale, or present it as your own. Pipe dimension standards referenced here (ASME, ASTM and similar) are the property of their respective standards bodies; this site quotes representative values for calculation and does not reproduce those standards.
Governing terms
These terms, and any dispute arising from use of the site, are governed by the ordinary law applicable to the site operator's jurisdiction. If any provision is found unenforceable, the remaining provisions continue in effect. Continuing to use the site after a change to these terms means you accept the revised version.
Automated access
You may not use bots, scrapers or other automated means to harvest the site's content or overload its resources. Reasonable, normal use by search-engine crawlers is welcome; anything that degrades the service for others is not permitted.
Changes
These terms may change over time; the version published here is the one in force.