Cookie policy
Last updated: 1 November 2026
Cookies are small text files stored on your device. Websites also use similar technologies such as local storage. This page explains what we use and how you can control it.
Strictly necessary / functional
| Name | Type | Purpose | Duration |
|---|---|---|---|
| calcten-prefs | Local storage | Remembers your unit system and region | Until cleared |
| calcten-consent | Local storage | Remembers your cookie choice | Until cleared |
Advertising
When ads are enabled, Google and its partners may set cookies to serve, measure and personalise ads and to limit how often you see them. These are only used for personalisation where you have consented (in regions where consent is required). Details are in Google's explanation of how Google uses information from sites that use its services.
Analytics
We do not currently run analytics. If we add it, we will update this page and ask for consent where required.
Managing your choices
- Use to change or withdraw consent at any time.
- Opt out of personalised Google ads at Google Ads Settings.
- Block or delete cookies in your browser settings. Blocking all cookies may affect how the site works.