Privacy

Calculations and saved data

Calculator inputs are processed to display your result. Drafts, favourites and saved calculations are stored locally in your browser, with no account required. You can delete them by clearing this site’s data in your browser settings.

When you select “Copy link”, the selected inputs are added to the URL. This only happens when you choose to create a link. Anyone you share it with can see the values included in it.

Search and analytics

The Yandex Metrica counter used by the Russian site is disabled on fatsl.com. The English site does not send visits, search queries, recipe contents or prices you enter to that counter.

You can manage this site’s locally stored data through your browser settings. Clearing that data also removes saved calculations and preferences.

Advertising

The Russian site’s Yandex advertising module is disabled on fatsl.com. The English site does not load that module.

Server logs

The hosting provider may keep request logs to maintain and protect the site. FATSL does not require an account to use its public calculators and does not publish your entered values as shared prices.

Updates to this page

If the service changes, this page will be updated with the corresponding release. Last updated: September 19, 2026.