Privacy Policy
Short version: your inputs never leave the browser, and nothing is stored.
Short version
Your weight, exercise minutes and the heat setting are used inside the page and nowhere else. Nothing is uploaded, nothing is stored, and there is no account.
What happens to your inputs
- They stay in the page. The script reads the two number fields and the checkbox, computes a range and writes it back into the same page.
- No upload. There is no request carrying your weight. The calculator works with the network disconnected once the page has loaded.
- No storage. Nothing is written to local storage, cookies or a database. Reload and the defaults (70 kg, 30 minutes, no heat) return.
- No analytics of inputs. The page does not record which values were entered or how often the form was used.
Weight is personal data
Body weight is exactly the kind of detail that should not be collected by a page that does not need it. This one does not: the calculation is a handful of multiplications, and sending them anywhere would add risk without adding accuracy. If you use the tool on a shared device, closing the tab is enough to remove the values from the page.
Browsers sometimes offer to remember form values as part of their own autofill. That is a browser feature outside this page's control, and it can be cleared in the browser's settings.
What the server sees
Like any website, the server receives the request for the page: URL, time, IP address and user agent. Those requests are used to serve pages and to count aggregate traffic. They do not contain your weight or your answers.
Third parties
The pages load no third-party scripts, fonts, images or embeds. There is no advertising network and no analytics service. If that ever changes, this page will say so before the change ships.
Children
Nothing is collected, so there is nothing to collect from a child. The estimate is not designed for children's requirements, and a parent should treat any number here as a rough adult figure rather than a target for a child.
Contact
Privacy questions can go through the contact link on the main site. There is no dedicated privacy mailbox for this tool cluster.