Privacy policy

The numbers you type

They stay in your browser. Calculations run on your device in JavaScript and the values are never transmitted to us or written to our database.

Stored on your device

Your theme choice, favourites and recently used calculators are saved in your browser's local storage. Clearing your browser data removes them. There is no account and no profile.

What we count

When a calculator produces a result, the site records that the calculator was used — the name of the calculator and nothing else. No inputs, no results, no identifiers.

Advertising

Ad space on this site may be served by Google AdSense, which can set cookies to show more relevant advertising and to measure performance. You can review or change your choices in Google's Ads Settings, and manage cookies through your browser. Ads are kept to fixed, labelled blocks — nothing that covers content, follows you down the page or interrupts a calculation.

Server logs

Like any website, the hosting server records requests including IP address, browser type and the page requested. These logs are used for security and troubleshooting.

Children

This site is a general-purpose reference tool and is not directed at children under 13.

Changes

If this policy changes, the date above changes with it.