Last updated: August 2026

Key Calculators (keycalculators.com) provides free online calculators for everyday financial, home, and general-purpose questions. This page explains what information the site collects from visitors and how it’s used. If anything here isn’t clear, the contact page reaches me directly.

Using this site means you’re agreeing to the practices described below.

Information we collect

The calculators themselves don’t require an account, and the numbers you enter into them aren’t stored or sent anywhere — calculations run in your browser.

If you use the contact form, I receive whatever you enter: your name, your email address, and your message. That information is used only to reply to you, and isn’t added to any mailing list or shared with anyone else.

How this information is used

• Responding to messages sent through the contact form
• Understanding which pages and calculators visitors use, in aggregate, to decide what to build or fix next
• Keeping the site secure and working correctly

Cookies and advertising

Like most websites, this site uses cookies — small files stored in your browser that remember basic preferences and help understand how the site is used.

This site uses Google AdSense to display advertising. Google and its advertising partners use cookies to show ads based on your visits to this site and others. You can see and adjust what Google knows for ad personalization at google.com/settings/ads, or opt out of interest-based advertising more broadly at aboutads.info.

This site may also use Google Analytics to understand traffic patterns. Analytics data is aggregated and anonymized — it doesn’t identify individual visitors. You can opt out using Google’s Analytics opt-out browser add-on.

Third-party ad networks operate under their own privacy policies, which I don’t control. I’d recommend checking Google’s own advertising privacy policy for the most current detail on how ad personalization works.

If you’re in the European Economic Area (GDPR)

You have the right to know what personal information is held about you, correct it, request its deletion, restrict how it’s processed, or ask for a copy in a portable format. To exercise any of these, use the contact page and I’ll respond directly.

If you’re a California resident (CCPA)

You have the right to request a copy of the personal data held about you, correct inaccurate information, or request its deletion, subject to certain legal exceptions. This site does not sell personal information to third parties.

Children’s privacy

This site doesn’t knowingly collect personal information from children under 13. If you believe a child has provided personal information through the contact form, get in touch and I’ll remove it promptly.

Third-party links and log files

Like most hosting providers, standard server logs record technical details such as IP address, browser type, and pages visited — used only for security and understanding site traffic, never linked to a person’s identity.

Pages on this site may link to external websites. Once you leave keycalculators.com, this policy no longer applies — I’d recommend checking the privacy policy of any site you visit from here.

Questions about this policy

Email info@keycalculators.com, or use the contact page. This policy may be updated occasionally as the site changes; the date at the top of this page always reflects the most recent revision.