Cookies and browser storage

Cookies

This release does not intentionally use advertising, analytics or marketing cookies. It does not display AdSense ad units and does not enable Auto ads.

Browser storage used by optional features

With your permission, the site can save small values in local browser storage on the device you are using. This allows it to remember:

• Appearance preference — the light or dark appearance you select.
• Favourites — calculator IDs you choose to save.
• Recently used tools — calculator IDs after you calculate a result.

These values remain in your browser unless you clear them. They are not used for advertising or analytics and are not sent to the calculator service by this site’s calculator code.

Your choice

On first visit, you can choose optional preferences or essential-only use. You can change your decision below. Choosing essential-only means appearance, favourites and recent tools may not persist after you close or refresh the page.

Change browser preference choice Clear saved browser preferences

Future advertising

Google AdSense may be considered for the website in the future. Before ads are served, the Google CMP selected for this site will be configured and the advertising, privacy and browser-storage information will be updated to reflect the live setup. Advertising will not be activated simply because this page mentions it.

Last updated: 2 July 2026