Privacy Policy
coastfire.info collects no personal information. Calculator inputs stay in your browser and in the URL. The only third party with any visibility into your visit is Google, through the ads served on this site.
Want to skip ahead? Run your own numbers in the calculator.
Last updated: May 11, 2026.
What this site collects
Nothing, directly. There are no user accounts, no email signups, no analytics scripts, and no server-side logging of personal information. The Coast FIRE calculator runs entirely in your browser. The values you enter — age, savings, spending, return assumptions — are kept in the URL so you can bookmark or share a scenario, and they never leave your device.
Cookies
coastfire.info does not set any cookies of its own. The advertising network described below may set cookies on your device.
Third-party advertising
This site is monetized through Google AdSense, which serves ads across the calculator and articles. AdSense is a third-party advertising service operated by Google LLC.
Google may use cookies and similar technologies — including a cookie called DART — to:
- Serve ads based on your prior visits to this site or other sites
- Measure ad performance
- Personalize ads where you have not opted out
You can opt out of personalized advertising at any time by visiting Google Ads Settings. Many additional third-party vendors are listed at aboutads.info, where you can opt out of interest-based advertising more broadly.
For details on how Google processes data when you use their partners' sites or apps, see Google's Privacy & Terms.
EU and UK visitors
If you are in the EU, EEA, UK, or Switzerland, the GDPR or UK GDPR may apply. coastfire.info itself does not store or process personal data, but Google AdSense may. By using this site, you acknowledge that ads are served by Google and that interactions with those ads are subject to Google's terms.
California visitors
Under the CCPA, California residents have the right to know what categories of personal information are collected and to opt out of any "sale" of that information. coastfire.info does not sell personal information. Third-party advertising via Google AdSense may qualify as sharing under the CCPA; refer to Google's policies linked above.
Children's privacy
This site is intended for adults thinking about retirement. It is not directed at children under 13, and no information is knowingly collected from them.
Changes
This page may be updated as the site evolves. The most recent revision date is noted at the top.
Contact
Questions about this policy or how data is handled can be sent to coastfire@sandhill.software.
Run the numbers for yourself
Plug in your spending, savings rate, and target retirement age. The calculator shows the exact year compound growth alone is enough.
Open the Calculator