Short version: your numbers stay on your device.
We do not collect, transmit or store the figures you enter into any calculator on this site. All calculations run locally in your browser using JavaScript. There is no account system and no submission of your data to any server.
We may use privacy-respecting analytics to count page views and understand which calculators are used. This does not capture the values you type.
This site may display advertising. Advertising partners may use cookies to measure performance and show relevant ads. Where required by law, you will be asked for consent before any non-essential cookie is set, and you can change or withdraw that choice at any time.
If you are in the EU, UK or a jurisdiction with comparable law, you have the right to access, correct and erase personal data held about you, and to object to processing. Because we do not store your calculator inputs, there is generally nothing of that kind to retrieve - but you can contact us with any request.
Questions about this policy can be sent via the contact page.