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Privacy

In short: we do not collect personal data and we do not use cookies.

The calculators run in your browser. The measurements you enter are not sent anywhere; they are kept only in the address bar (after #) so you can share or bookmark the link.
We use Cloudflare Web Analytics to count visits. It sets no cookies and does not store IP addresses.
If you email us, we use your address only to reply.
Links to shops and makers take you to websites with their own privacy rules.

If we add ads or partner links later, we will update this page before they go live.