Calculator data
The dates you enter are processed in your browser. They are not submitted to our server, saved to an account or placed in the page URL.
Theme preference
If you choose light or dark mode, that preference is saved in your browser using local storage. It contains no date-of-birth information.
Advertising and cookies
This website does not currently display third-party advertisements. We may use Google AdSense after the website is approved. If advertising is enabled, Google and its advertising partners may use cookies, web beacons, IP addresses or similar technologies to show and measure ads.
Advertising cookies may be used to personalise ads where allowed. Read how Google uses information from partner sites and use Google My Ad Center to manage personalised advertising.
Consent choices
Before advertising is enabled, we will configure the consent messages required for visitors in applicable regions. Available choices may include accepting, rejecting or managing advertising cookies.
Analytics
Basic, privacy-conscious traffic analytics may be enabled to understand page visits and site performance. This policy will be updated with the specific provider before analytics is activated.
Contact
For a privacy question, use the details on the contact page.