Effective date: 1 October 2026. This page explains what this site does with your data.
All calculations run locally in your browser. The figures you enter are never transmitted to a server, we do not store them, and no account or personal information is required to use any calculator.
We use aggregated, anonymous analytics to understand which pages are useful. That data does not identify you personally. Our hosting provider keeps standard server logs for security and abuse prevention.
This site displays advertising served by Google AdSense. Google and its third-party vendors use cookies — including the DoubleClick cookie — to serve ads based on your prior visits to this and other websites. You can opt out of personalised advertising in Google Ads Settings, or opt out of third-party vendor cookies at aboutads.info.
Some outbound links on this site are affiliate links. If you sign up or buy through one we may receive a commission. This never changes the price you pay, and it has no influence on the figures or the rankings our calculators produce.
Questions about this policy, or a correction to a figure: [email protected].