Your inputs stay yours.
Simple tools. Transparent methods. Practical limits.
Calculator data
Calculations happen in your browser. The site has no accounts or database and does not save calculator inputs in local storage. Vercel Web Analytics measures anonymous page views without cookies. This operates independently of the Google Analytics choice below. The Google tag loads in the page head with analytics storage denied by default. With your permission, Google Analytics measures visits and usage using cookies. We save your analytics choice in local storage; declining keeps analytics storage denied and removes Google Analytics cookies set by this site. The tag may still contact Google for limited cookieless signals.
Links you choose to share
Copy result link includes calculator inputs in the URL. Anyone who receives that URL can see them. URLs may be retained in browser history and hosting access logs. If you allow analytics, Google Analytics may also receive the page URL, including any inputs in its query string.
Hosting and external websites
Your hosting provider may process technical request information such as IP addresses and URLs. Google Analytics may collect device, browser, approximate location and usage information when enabled. You can change your choice with Analytics settings in the footer. External reference websites have their own privacy policies.