Terms of use
FabricMeasure publishes fabric and sewing calculators that show their working. They are a guide to help you plan a purchase, not a professional measuring service — the figures are only as good as the measurements you enter, and you should check them against your own job before you cut anything or place an order.
Last updated: 20 August 2026.
Check before you cut
This is the one that matters, so it comes first. Every calculator here rounds up at every step, states the allowances it used, and shows the arithmetic — but it cannot see your window, your cloth, or the way your curtains are being made. Fabric is usually cut to order and rarely refundable, and a dye lot that has sold out cannot be matched later.
So: treat the result as a figure to check, not a figure to act on unread. Open How we got this, read the allowances, and change any that do not match your job. If you are working to a professional's instructions or a workroom's own method, theirs wins.
What is not modelled
Every calculator states its own assumptions on its own page, and the methodology page collects the ones that apply across the site. In summary, the figures assume:
- the roll width you enter is all usable — no selvedge loss is deducted;
- a full-drop pattern repeat, not a half-drop, which needs an extra half repeat per width;
- no railroading — the cloth runs the ordinary way, top to bottom;
- no shrinkage beyond any allowance you enter yourself.
Where a calculation is a heuristic rather than an exact answer — the cutting plans, in particular — it is labelled as one on the page. Those never under-order, but a cutter with the cloth in front of them can often beat the plan.
No warranty, and the limit of what is owed
FabricMeasure is provided free and as-is. No warranty is given that a result is accurate, complete or fit for any particular purpose, and to the extent the law allows, no liability is accepted for loss arising from relying on one — including fabric bought, cut or wasted. Nothing here limits liability for death or personal injury caused by negligence, for fraud, or for anything else that cannot lawfully be excluded, and if you are a consumer this does not affect your statutory rights.
If a result looks wrong, please say so. Every calculator carries a Report a wrong result link that pre-fills the exact inputs, and a correction is the most useful mail this site gets.
Using the content
Read the site, use the calculators, and share a link to a calculation freely — the address bar encodes your inputs precisely so that a link is shareable. The reference tables and definitions may be quoted with attribution and a link. Do not re-publish the pages wholesale as your own.
Every calculator also has a plain-text version at the same address with .md on the
end, published so that a machine reading the site gets the formula rather than a guess at it.
That is deliberate and you are welcome to use it.
Availability and changes
The site is a static one-person project. It may be offline, and a tool may change or be withdrawn without notice. When the maths behind a calculator changes, its method version bumps and the date beneath it changes, so a figure you saved earlier can be told apart from today's. These terms may change too; the date at the top says when they last did.
Contact
Email hello@fabricmeasure.com, or use the contact page. See also the privacy page for what the site does and does not collect.