Privacy Policy

Last updated: 2026

The short version

We collect almost nothing. Calculator inputs are processed in your browser and never sent to our servers. We don't have accounts, so there's nothing to leak.

What we do collect

Like most websites, our hosting provider may log basic technical data (such as IP addresses and pages visited) for security and reliability. We use this only in aggregate to understand which calculators people find useful.

Cookies and advertising

We may display ads (for example, Google AdSense) to keep the calculators free. Ad providers may use cookies to show relevant ads and measure performance. You can control cookies in your browser settings.

Children

CalcNest is a general-audience site and is not directed at children under 13. We do not knowingly collect personal information from children.

Contact

Questions about privacy? Reach us via the contact page.

Frequently asked questions