Privacy Policy
Last updated: September 1, 2026
Compound Interests Calculator ("we," "us," or "our") operates compoundinterestscalculator.com. This page explains what information is collected when you use this site and how it's used.
Information we collect
Tool inputs: every value you enter into a calculator on this site is processed entirely in your browser. Nothing you type into a calculator is transmitted to us or stored by us.
Theme preference: if you switch between light and dark mode, that choice is saved locally in your browser's storage so it persists between pages. It never leaves your device.
Usage data: standard server logs (pages visited, approximate location by IP, browser and device type, referring site) are collected by our hosting provider as part of operating the site.
Contact form: if you send a message through the contact page, the name, email, and message you provide are transmitted to our form handler so we can reply to you. Please don't include sensitive personal information in messages.
Cookies: this site does not currently set cookies of its own. See our Cookie Policy for details.
How we use this information
Usage data helps us understand which tools and pages are useful and keep the site working. Contact messages are used only to respond to you.
Third-party services
Fonts are served by Google Fonts; loading them shares standard request data (such as your IP address) with Google. See Google's privacy policy at policies.google.com/privacy. The contact form is processed by our own form handler at readyutilities.com. No advertising or analytics services currently run on this site.
Your privacy rights
The only personal information this site holds is what you send through the contact form. You can ask what we hold about you, ask for it to be corrected, or ask for it to be deleted at any time through the contact page; choose the privacy request subject and we will respond. California's online privacy law (CalOPPA) requires this policy to describe what is collected and who it is shared with, which the sections above do. Visitors in the EEA and UK: server logs are processed on the legitimate-interest basis of operating and securing the site, and contact messages on the basis of responding to your request.
Your choices
You can clear the saved theme preference by clearing your browser's site data for this domain. You can control cookies through your browser settings.
Children's privacy
This site is not directed at children under 13 and we do not knowingly collect personal information from children.
Changes to this policy
We may update this policy from time to time. The "Last updated" date at the top of this page reflects the most recent revision.
Contact
Questions about this policy can be sent through our contact page.