Privacy Policy

01Information we collect

We are designed to work without accounts or personal information. The limited data we may handle falls into three groups:

• Calculator inputs: the values you type are processed in your browser to produce results. They are not transmitted to or stored on our servers.
• Contact submissions: if you use our contact form, we receive the name, email, subject and message you provide so we can respond.
• Usage data: like most websites, our hosting and analytics may record anonymised technical information such as page views, device type and approximate region.

02How calculations are processed

Our calculators run client-side. When you enter figures — for example a loan amount or your weight — the math executes locally in your browser and the result is shown to you directly. We do not need, request, or retain those values.

Share links encode your inputs into the page URL so you can bookmark or send a calculation. That URL is only shared if you choose to share it.

03How we use information

We use contact form details solely to reply to your message. We use anonymised usage data to understand which calculators are popular, fix problems, and improve performance. We do not use your data for profiling or to build advertising profiles about you.

04Cookies and analytics

We use a small amount of browser storage to remember preferences such as your light/dark theme. We may use privacy-respecting analytics to measure aggregate traffic. For details and choices, see our Cookie Policy.

05Sharing and disclosure

We do not sell your personal information. We may share limited data with service providers who help us operate the site (such as hosting and analytics providers), and we may disclose information where required by law.

06Data retention

Contact submissions are kept only as long as needed to handle your request and for reasonable record-keeping. Anonymised usage data may be retained in aggregate. Because calculator inputs are not collected, there is nothing for us to retain.

07Your rights

Depending on your location, you may have rights to access, correct or delete the personal data we hold about you (which, for most visitors, is none). To make a request, contact us using the details below.

08Children's privacy

Our tools are general-purpose and not directed at children under 13. We do not knowingly collect personal information from children.

09Changes to this policy

We may update this Privacy Policy from time to time. Material changes will be reflected by updating the date at the top of this page.

10Contact us

If you have questions about this policy or your data, please reach out through our Contact page.