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Privacy policy

The short version: the calculators run entirely in your browser, there are no accounts to create, and this site sets no cookies of its own. Last updated 4 November 2026.

What the calculators do with your numbers

Nothing leaves your device. Every calculation on ExaCalculator happens in your own browser using code loaded with the page. The measurements you type are never sent to us, stored, or shared, because there is no server component receiving them. Close the tab and they are gone.

Data we collect

We do not run analytics on this site today, we do not operate accounts, and we do not collect names, emails or payment details through the site. If you email us, we receive the address and content of that email, used only to reply.

Hosting and server logs

The site is hosted on Cloudflare. Like any web host, Cloudflare processes standard technical data to deliver pages and keep the service secure, such as your IP address, browser type and the pages requested. That processing is governed by Cloudflare's own privacy policy.

Cookies and advertising

ExaCalculator itself sets no cookies. In future the site may carry advertising, including Google AdSense, to keep the tools free. Advertising partners use cookies to serve and measure ads, and if that happens this policy will be updated before ads go live, with the partner categories named here. You can control cookies at any time in your browser settings.

Your choices

Because we hold no account data, there is usually nothing to delete. If you emailed us and want that correspondence deleted, write to us and it will be removed. Questions about this policy go through the contact page.