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You can change your cookie preference at any time.
Strictly necessary
None currently. The calculator itself needs no cookies - it runs entirely in your browser using temporary page memory only.
Analytics cookies (only with consent)
| Cookie | Purpose | Duration |
|---|---|---|
| _ga | Distinguishes unique visitors for Google Analytics | 2 years |
| _ga_* | Persists session state for Google Analytics 4 | 2 years |
These are only set if you accept them via the consent banner or the button above. If you reject or ignore the banner, none of these are set.
Advertising cookies (planned, only with consent)
We intend to use Google AdSense on this site. Once active, AdSense may set cookies for ad delivery and measurement, and - only if you consent to ad personalisation specifically - for personalised advertising. These will be gated by the same consent choice described above using Google's Consent Mode.
How consent works technically
We use Google's Consent Mode, which defaults all analytics and advertising cookies to "denied" the moment you land on the site. Nothing is stored or sent until you actively click Accept. If you click Reject, that choice is remembered and no non-essential cookies are set on future visits either.
More detail
See our Privacy Policy for how we and Google process any data collected.