Privacy Policy

Last updated: July 2026

The short version

Your calculator inputs stay in your browser. We never see, store, or transmit the numbers you type — all calculations run entirely on your device. We use Google Analytics to understand which calculators people use, and we may show advertising to keep the site free.

Calculations

Every calculator on Calcaholic runs in your browser using JavaScript. The values you enter are not sent to our servers. If you use the "Copy link" or share features, your inputs are encoded into the link you create — share those links only with people you want to see them.

Analytics

We use Google Analytics 4 to collect aggregate usage data: which pages are visited, which calculators are used, and general information such as browser type, approximate location (country/city level), and how you found the site. This helps us decide which calculators to build next. Google Analytics uses cookies; you can opt out with the Google Analytics opt-out browser add-on.

Advertising

We may display advertising served by Google AdSense. Google and its partners may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising at Google Ads Settings. We may also include affiliate links, clearly relevant to the page they appear on; we may earn a commission if you make a purchase through them, at no cost to you.

Embedded calculators

Our calculators can be embedded on third-party websites. When you use an embedded calculator, the same rules apply: inputs stay in your browser, and aggregate usage is measured via Google Analytics. The website hosting the embed has its own privacy policy that governs the rest of that page.

Data we do not collect

We do not require accounts, do not collect names or email addresses (unless you email us), and do not sell any data to anyone.

Contact

Questions about this policy: hello@calcaholic.com.