Terms of Use

Last updated: 2026-09-10

These terms govern your use of sewcalcs.uk (the “site”). By using the site you agree to these terms. If you do not agree, please do not use the site.

1. What the site provides

The site is a free library of sewing, dressmaking and quilting calculators plus reference content — covering fabric yardage and layout, seam allowances, pattern sizing and ease, curtains and blinds, quilting backing and binding, notions and thread. It is provided “as is” without account registration or payment.

2. Accuracy and your own measurements

Calculators are estimates based on standard fabric widths, established dressmaking practice, and the measurements and dimensions you enter. Real-world results depend on the specific fabric, its width, nap and pattern repeat, shrinkage, your pattern and the seam allowances and ease you use, and how the fabric behaves once cut. Always pre-wash and measure your actual fabric, check the pattern’s own yardage and finished measurements, and make a toile (test garment) for fitted pieces before cutting your main cloth.

Treat every result as a starting point, not a guarantee. Fabric quantities in particular vary with width, nap, pattern matching and layout, so buy a little extra from the same bolt and dye lot where you can. We round and estimate conservatively, but we cannot account for every fabric, pattern or project, so verify quantities and measurements against your pattern and your own cloth before you cut.

3. Limitation of liability

To the fullest extent permitted by law, we are not liable for:

indirect, incidental, or consequential loss arising from your use of the site;
loss of profits, revenue, goodwill, business interruption, or anticipated savings;
wasted fabric, mis-cut or mis-sized garments, or errors or omissions in calculator output;
out-of-date citations where fabric widths or sizing conventions have since changed;
third-party links and their content.

Nothing in these terms limits or excludes liability for death or personal injury caused by negligence, fraud, or any liability that cannot lawfully be excluded under English law.

4. Acceptable use

You agree not to:

access the site by automated means (crawlers, scrapers, headless browsers, bulk-download tools or scripts), except a search engine indexing pages for public search results or an assistant fetching a page at a user’s request, in each case within the limits set by our robots.txt;
extract, copy or re-use all or a substantial part of the site’s content, or repeatedly and systematically extract small parts of it, whether by hand or by machine;
use any of the site’s content to build, train, fine-tune or evaluate a machine-learning model or dataset, or to build a competing service;
interfere with, damage or bypass the site’s services or its access controls;
misrepresent the site’s content as official guidance or as an endorsement of a product;
use the site for any unlawful purpose.

The Disallow directives and content signals in our robots.txt form part of these terms. Allow directives, and the absence of a directive, are a technical convenience for well-behaved crawlers and grant no licence; the permissions in this section are the only ones we give. Automated access that breaches these terms may be blocked at the network edge without notice.

5. Intellectual property

The site’s text, worked examples, questions and answers, illustrations, icons, page design and code are original works protected by copyright under the Copyright, Designs and Patents Act 1988 and are owned by SewCalcs or licensed to us. The site as a whole, including its collection of calculators, verified figures, citations and answers, is a database in which we have made a substantial investment in obtaining, verifying and presenting the contents. It is protected by the database right under the Copyright and Rights in Databases Regulations 1997 in addition to copyright.

You may:

view, save and print pages for your own personal or internal business use, including handing a printed sheet to a customer;
link to any page from your own site or documents;
quote short extracts with attribution to SewCalcs and a link to the page.

You may not, without our written licence:

republish, redistribute or sell any page or a substantial extract from one;
extract or re-use all or a substantial part of the database, or repeatedly and systematically extract small parts of it;
use the content for text and data mining, or to train or fine-tune an AI system. We reserve our rights in the content for these purposes; the exception in section 29A of the 1988 Act covers only non-commercial research. Answering one user’s question from a page fetched at that user’s request, with attribution and a link, is permitted (section 4); bulk or systematic ingestion to build a corpus or index for generated answers is not;
remove attribution or present the site’s content as your own.

To license our content, including for a commercial product, write to [email protected]. We act on infringement, including by takedown notices to search engines and hosting providers and by legal action where necessary.

Feedback you send us. If you send feedback through the site you grant us a free, worldwide, perpetual licence to use it to improve the site, and you confirm it is yours to send and contains nothing confidential or unlawful. Do not send personal data about other people. Our Privacy Policy says how long we keep it.

6. Privacy

See our Privacy Policy and Cookie Policy for how we handle personal data.

7. Changes to these terms

We may update these terms when the law, our services, or our practices change. The “last updated” date reflects the most recent revision.

8. Governing law

These terms are governed by the laws of England and Wales. Any dispute is subject to the exclusive jurisdiction of the courts of England and Wales.