Data and cookies

Local calculations, consent-controlled advertising

The calculators do not store or transmit what you enter. This page explains the separate website-delivery and advertising technologies that may process data when you visit.

Last updated: 14 July 2026.

Calculator data

Calculation inputs remain in the active browser page. The tools do not place those inputs in cookies, localStorage, sessionStorage, a database or website logs. Closing or refreshing the page clears the values unless your browser itself restores form state.

Strictly necessary processing

The web server and content-delivery network process ordinary HTTP request information to return pages, prevent abuse and maintain security. This processing is necessary to provide the site and does not contain the values entered into calculators.

Advertising and analytics storage

Google consent signals for ad_storage, analytics_storage, ad_user_data and ad_personalization begin as denied. Where the European consent message applies, you can refuse, accept or manage individual purposes and providers. If storage is denied, Google tags must not read or write advertising or analytics cookies for those denied purposes. Google may still process limited cookieless requests for ad delivery, measurement, security and fraud prevention as explained in its consent-mode and partner-sites information.

Change or withdraw your choice

Consent is optional and can be withdrawn. Select Privacy choices here or in the footer to reopen the certified consent controls. Refusing optional purposes does not prevent use of the calculators.

Browser controls

You can also delete or block cookies in your browser. Blocking all cookies may affect advertising preferences but does not stop the local calculator logic. See the privacy policy for contact details, rights, recipients, international processing and retention information.