What this site stores
The short version: nothing about your tattoo, and nothing that names you. The calculator runs entirely in your browser. We use Google Analytics to count visits, which is described below.
What we do not collect
- No account, no sign-up, no email address.
- No uploads. There is no field for a design, a photo, or a reference image, and the site never asks for one.
- No name, no date of birth, no location permission.
- No advertising cookies and no ad networks.
- Nothing you type into the calculator is sent to us.
What stays on your device
Calculator settings and the homepage motion switch stay in your browser:
- The URL. Calculator settings are kept in the address bar: the size, placement, style, rate, and city you chose. That is what makes “Copy link” work. If you share that link, whoever opens it sees the same estimate. These settings are not saved to local storage.
- The homepage motion switch. Its setting is held in memory while the page is open. It is not written to local storage, and reloading the page resets it.
Analytics
We use Google Analytics 4 to see which pages people visit and how they find the site. It records things like the pages you view, how long you stay, the referring site, and your approximate location and device type, and Google processes that data under its privacy policy. We look at it only in aggregate. The calculator’s inputs are kept in the page address, so the page address Google Analytics records can include the size, placement, style, and rate you chose. To opt out, use a content blocker or Google’s browser add-on.
Cookies
The only cookies are the ones Google Analytics sets (named _ga and _ga_*) to tell a returning visitor from a new one. The site itself sets none.
Advertising
There is no advertising on this site today. If that changes, ads will never be placed above the result or beside the calculate button, and this page will be updated first.
Questions
Write to hello@tattoocalc.com. Last updated October 9, 2026.