Privacy policy

Information we collect

Calculator inputs: All calculations run entirely in your browser. We do not transmit or store any inputs you enter into the calculator on our servers.

Usage data: We use Google Analytics to collect anonymised data about how visitors use the site — pages viewed, time on site, device type, and approximate geographic location (country/city level). This data does not identify you personally.

Contact emails: If you email us, we retain your email address and message content to respond to your enquiry. We do not add you to any mailing list without explicit consent.

Cookies

Advertising

This site uses Google AdSense to display advertisements. Google, as a third-party vendor, uses cookies to serve ads based on your visits to this and other websites.

You can opt out of personalised advertising by visiting Google's Ad Settings or aboutads.info.

How we use your information

• To operate and improve the website and calculator
• To respond to enquiries you send us
• To understand how the site is used (aggregated analytics only)
• To serve relevant advertising via Google AdSense

We do not sell, trade, or otherwise transfer your personal information to third parties.

Data retention

Google Analytics data is retained for 14 months. Email enquiries are retained for up to 12 months. Calculator inputs are never stored.

Changes to this policy

We may update this policy from time to time. The date at the top of this page reflects the most recent revision. Continued use of the site after any changes constitutes acceptance of the updated policy.