Last updated: 11 October 2026. This policy covers the calculator website. Services reached through external links have their own privacy policies.
Calculator inputs
Many calculators perform calculations in your browser. Those tools do not need to send your inputs to a calculation server. Some existing calculators submit inputs using a GET request, which includes the values in the page address. Those values can appear in browser history, server or hosting logs and links you share. Do not enter information that identifies you or another person. Calculator inputs are not a private record-storage service.
Technical information
When you visit, the hosting provider and other services involved in delivering a page may process information such as your IP address, browser, device information, requested page, access time and error details. This information is used to deliver the website, maintain security and investigate errors. Retention depends on the services and settings used. Information you include in a feedback message is used to handle that message.
Advertising and cookies
This site may use Google AdSense to display advertisements. Google and other third-party advertising providers may place or read cookies, use web beacons, or collect IP addresses and device information as part of serving and measuring ads. Google advertising cookies can enable Google and its partners to serve ads based on visits to this site and other sites. Where enabled and permitted, ads may be personalized. Advertising availability and personalization depend on your location, consent choices and the providers’ settings.
Learn how Google uses information from sites that use its services and read Google’s Privacy Policy. Other ad technology providers may process information under their own policies, which are available through the consent message where one is shown.
Analytics
When configured, Google Tag Manager may load measurement tags to understand site usage and diagnose problems. Google consent defaults on this site are set to denied for advertising and analytics storage until updated by a consent integration. The behavior of individual tags also depends on their configuration. These controls do not prevent the hosting provider from processing technical requests needed to deliver the site.
Your privacy and cookie choices
Where a Google consent message is available, use “Manage advertising consent” in the footer to revisit your choices. You can also manage personalized Google ads through My Ad Center and learn about choices for other providers at YourAdChoices. Browser settings let you block or delete cookies. Blocking cookies can affect third-party services. A browser choice or advertising opt-out does not remove technical logs already created.
Privacy requests and children
To ask about information you supplied directly, contact us using the contact page. Describe the request without sending sensitive documents. Privacy rights and available choices depend on where you live and the service holding the information. The site is a general-purpose calculator resource and does not ask children to provide personal information.
Policy updates
We may revise this page as the website or its services change. The updated date identifies the latest published revision. Check the policies of any external website before providing information there.