Legal

Privacy policy

Last updated: June 20, 2026. This page explains what data is and isn't collected when you use this website ("the site").

The short version

The calculators run entirely in your browser. We don't ask you to create an account, and the numbers you type are never sent to us or stored on a server. We do show ads and measure basic traffic, and those partners use cookies, as described below.

What we collect

• Calculator inputs: nothing leaves your device. Some tools remember a preference (like your currency) in your browser's local storage, which only you can see.
• Usage data: our analytics provider records anonymous, aggregate information such as pages visited, rough location (country), device type, and referring site. This is not tied to your identity.

Cookies and advertising

This site uses cookies to run advertising and analytics.

• Google AdSense: Google and its partners use cookies to serve ads based on your prior visits to this and other websites. Google's use of advertising cookies enables it and its partners to serve ads to you. You can opt out of personalized advertising by visiting Google Ads Settings.
• Third-party vendors: third-party vendors, including Google, use cookies to serve ads based on someone's prior visits. You may opt out of third-party vendors' use of cookies for personalized advertising at aboutads.info.
• Analytics: we use a privacy-respecting analytics tool to understand which calculators are useful, in aggregate only.

Your choices and consent

When you first visit, you'll see a notice about cookies. You can decline non-essential cookies, use your browser's controls to block or delete cookies, and opt out of personalized ads via the links above. If you are in the European Economic Area, the UK, or Switzerland, ads are governed by a consent message; you can change your choice at any time.

Children

This site is not directed to children under 13, and we do not knowingly collect personal information from them.

Changes

We may update this policy as the site grows or as advertising and analytics partners change. The "last updated" date above will always reflect the current version.

Contact

Questions about privacy? Email harrryevvans@gmail.com or use the contact page.