Your calculations stay on your device
Every calculator on this site runs in your browser. The numbers you type are not sent to our servers and we do not store them.
What is saved in your browser
To make the site convenient we save a few preferences in your browser storage (localStorage). They never leave your device and you can clear them at any time from your browser settings:
- your light or dark theme and your digit style (Arabic-Indic or Latin);
- the list of calculators you used recently;
- the history, memory and display settings of the keypad calculators.
Server logs
Our hosting provider may keep standard server logs, such as IP address, browser type and the pages requested, for security and to keep the service running.
Advertising
This site may show ads served by Google AdSense and other approved partners. Third-party vendors, including Google, use cookies to serve ads based on a user’s previous visits to this and other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and other sites on the internet.
You can opt out of personalised advertising by visiting Google Ads Settings (adssettings.google.com), or opt out of some third-party vendors’ use of cookies at aboutads.info. Where the law requires it, for example in the European Economic Area and the United Kingdom, ads are shown according to the consent you give in the consent message.
Children
The site is a general-purpose tool and is not directed at children under 13. We do not knowingly collect personal information from children.
Your choices
You can block or delete cookies and site data in your browser at any time. Blocking advertising cookies does not stop the calculators from working.
Changes and contact
We may update this policy when the site changes; the date at the top shows the latest version. Questions about privacy can be sent through the Contact Us page.