Terms & Disclaimer

PatternCalculator.com provides practical hobby calculators intended to make common crochet, knitting and sewing calculations easier.

Calculator results

Results are estimates based on the information you enter and the formulas described on each calculator page. Materials, tension, fabric behaviour, pattern construction and individual technique can affect the final result. Check important measurements before cutting fabric or committing expensive materials.

No professional advice

The website is provided for general informational and hobby use. It does not replace instructions from a pattern designer, manufacturer, teacher or other qualified professional.

Availability

We aim to keep the calculators accurate and available, but we cannot guarantee uninterrupted access or that every calculation will be suitable for every project.

Personal use

You may use the calculators for personal and commercial craft projects. The website, design, calculator code and written content may not be copied or republished as a competing service without permission.

Changes

Tools and formulas may be improved over time. Continued use of the website means you accept the current version of these terms.