How data, cookies, and Google services relate to this site.

Calculator data

The core calculator runs client-side. Input values stay in your browser session, and theme or currency preferences may be stored locally using browser storage so the interface remembers your preferences.

Scenario links place selected calculator inputs in the URL so the same estimate can be reopened or shared. Do not put private account numbers, names, or sensitive notes into calculator inputs.

Google services and advertising

This site uses Google AdSense to show ads that support the project. Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to this website or other websites.

Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to this site and/or other sites on the Internet. Google and its partners may also use local storage, IP address information, browser details, device identifiers, and usage signals to deliver, limit, and measure advertising.

Those technologies may be used even when the site owner does not directly collect the same information in a separate database.

Cookies and identifiers

• Cookies may be used to store ad preferences, improve ad delivery, and measure campaign performance.
• IP address and general device information may be processed for fraud prevention, security, geolocation at a broad level, and ad reporting.
• Browser and device identifiers may be used by Google or its partners for measurement and ad-serving controls.

Site analytics

This site uses Vercel Web Analytics to count page views, referring sites, and broad device and country information. It does not set cookies. Vercel identifies a visit with a hash of request data that resets every day, so visits are not linked across days or to a person.

These counts show which calculators and guides help visitors, which decides what gets improved next.

Google disclosure link

For more information about how Google uses information from sites and apps that use its services, review Google’s own disclosure here:

Your choices

You may opt out of personalized advertising by visiting Google Ads Settings. You can also opt out of some third-party vendors' use of cookies for personalized advertising by visiting www.aboutads.info/choices.

You can also block or delete cookies through your browser settings. Opting out of personalized advertising does not remove all ads; you may still see non-personalized ads. Blocking cookies or third-party scripts may affect how some services load.

Visitors in the EEA, UK, and Switzerland

Visitors in the European Economic Area, the United Kingdom, and Switzerland are shown a consent message through a Google-certified consent management platform. That message lets you choose whether Google and its partners may use cookies and similar technologies for personalized advertising, and ads are served according to that choice.

Policy updates

This policy may be updated when site features, browser storage behavior, or third-party service use changes. Material privacy concerns can be reported through the contact page.

Contact about privacy questions

If you spot an issue in this policy or want to report a privacy-related concern about the site’s public content, use the project contact page.