Privacy Policy

Last updated: February 2026

Overview

interestcalculator.io respects your privacy. This page explains what data we collect, how we use it, and your rights.

Calculator Data

All calculations are performed entirely in your browser using JavaScript. No financial data you enter into our calculators is ever sent to our servers or stored anywhere. Your inputs stay on your device.

Analytics

We use privacy-friendly analytics to understand how visitors use the site (which pages are popular, how visitors find us). This data is aggregated and anonymous — we cannot identify individual visitors.

Advertising

This site displays advertisements through Google AdSense and/or similar advertising networks. These services may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalised advertising by visiting Google's Ad Settings.

Affiliate Links

Some pages contain affiliate links to financial products and services. If you click through and take out a product, we may receive a commission at no extra cost to you. Affiliate relationships do not influence the calculator results or the content on this site.

Cookies

This site uses only essential cookies and those set by third-party advertising and analytics services. We do not set any first-party tracking cookies.

Your Rights

Under UK GDPR, you have the right to access, correct, or delete any personal data we hold about you. Since we do not collect personal data beyond anonymous analytics, there is typically nothing to request. For any privacy queries, contact hello@interestcalculator.io.