Privacy policy

Last updated: 2026-11-15

HookMath offers free crochet calculators. This page explains what data is involved when you use the site.

Your calculations

All calculations run in your own browser. The numbers you type are not sent to us or stored on our servers.

Advertising and cookies

We may show ads from Google AdSense to keep the tools free. Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads based on your visits to this site and/or other sites on the Internet.

You can opt out of personalised advertising in Google Ads Settings, or learn more at aboutads.info. Visitors in the EEA, UK and Switzerland are asked for consent before personalised ads or non-essential cookies are used.

Analytics

We may use privacy-friendly analytics to count visits to each page. This data is aggregated and is not used to identify you.

Affiliate links

Some links may be affiliate links. If you buy through them we may earn a small commission at no extra cost to you.

Contact

Questions about this policy: hello@hookmath.com