Last updated: October 15, 2026.
Calculator inputs and share links
Calculations run in your browser. The calculators do not automatically send the numbers you enter to a calculation service. Copying a share link puts the chosen values in the URL. When that link is visited, its URL and those values may appear in hosting access logs and browser history. Share only values you want to disclose, and do not enter confidential information.
Website hosting
CalcPatch is hosted by Namecheap. Requests for pages and files may produce standard access logs containing an IP address, requested URL, browser information, and request time. These records support delivery, security, and troubleshooting. See Namecheap’s privacy policy for information about its practices.
Cookies, advertising and analytics
Google Analytics is optional and starts only after you accept analytics, or return with an unexpired acceptance saved in this browser. Rejecting leaves the calculators fully usable. Use Analytics settings in the footer to change your choice. Withdrawing stops collection and reloads the page, so copy any result you want to keep first.
If accepted, Google receives page visits, limited calculator actions and clicks from articles to their related calculators, together with browser and device information and the connection information needed to receive those requests. Analytics cookies help distinguish visits. Google may process this information on servers outside your country. Advertising personalization and Google signals are disabled. See Google’s privacy policy.
We send fixed article and calculator identifiers and action types, not calculator entries, results, recipe names, link query values or internal search text. An article-to-calculator event records a link click, not a completed calculation. Recorded page addresses exclude query strings and fragments; referrers contain only the referring site. Automatic form, search and link measurement are disabled in the configured analytics stream. Counts cover consenting tracked visits and may omit blocked requests or visitors who reject analytics.
Your analytics choice is saved in local storage for up to 90 days. If your browser blocks that storage, the choice lasts only on the current page. Analytics cookies are configured to expire after 90 days. Withdrawing removes the analytics cookies set by this site; it does not erase information already received by Google. Calculator entries are never saved in local storage. No advertising network or user accounts are enabled.
Contact messages
If you email CalcPatch, your address and the information you choose to include are processed to read and respond to the message. Please send only information needed to explain your question or correction. For questions about this policy or a message you have sent, contact CalcPatch.
External links
Reference links open other websites, which have their own privacy practices. Copy and share buttons use your browser’s clipboard or display text for you to copy; they do not submit a report to CalcPatch.