Legal
Privacy policy
Last updated: September 2026
Your privacy matters. This policy explains what data we collect (almost none) and how we handle your visit.
No data stored
Calculator inputs stay in your browser. Nothing is sent to our servers.
No account needed
No signup, no email, no login. Completely anonymous use.
Minimal cookies
Only essential and analytics cookies. No advertising or tracking cookies.
1. Information we do not collect
The EtG Calculator performs all calculations entirely in your web browser using client-side JavaScript. We want to be clear about what we do not collect:
Calculator inputs (drinks, weight, time, sex) — never sent to any server.
Calculator results — generated locally and never transmitted.
Personal health information of any kind.
Names, email addresses, phone numbers, or account credentials.
2. Information we may collect
Like most websites, we may collect limited non-personal information automatically:
| Data type | Purpose | Retention |
|---|---|---|
| IP address | Server logs, security | Auto-deleted after 30 days |
| Browser / device type | Compatibility, analytics | Aggregated, not linked to identity |
| Pages visited | Usage analytics | Aggregated, anonymized |
| Referral source | Understanding traffic | Aggregated only |
3. Cookies
We use minimal cookies:
| Cookie type | Purpose | Can you opt out? |
|---|---|---|
| Essential | Basic site functionality | Required for site to work |
| Analytics | Understand page visits (e.g. Google Analytics) | Yes — via cookie banner or browser settings |
We do not use advertising cookies, retargeting pixels, or social media tracking cookies.
4. Google Analytics
If enabled, we use Google Analytics to understand how visitors interact with the Website. Google Analytics collects anonymized data such as page views, session duration, and general geographic region. It does not collect calculator inputs or personal health data. You may opt out using the Google Analytics Opt-out Browser Add-on or by declining analytics cookies.
5. Google AdSense
This Website may display advertisements served by Google AdSense. Google may use cookies to serve ads based on your prior visits to this or other websites. You can opt out of personalized advertising by visiting Google's Ad Settings. We do not control the data Google collects through its advertising services.
6. Third-party services
We may use third-party services such as hosting providers, CDNs, and analytics platforms. These services may process limited technical data (such as IP address) as part of their operation. We do not sell, rent, or trade any user data to third parties.
7. Children's privacy
This Website is not directed at individuals under the age of 18. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will take steps to delete it.
8. Data security
We use HTTPS encryption for all connections to the Website. Since we do not collect or store calculator inputs or personal health data, the primary security risk to users is minimal. We take reasonable precautions to protect the limited technical data we do collect.
9. Your rights
Depending on your jurisdiction, you may have rights regarding your personal data, including the right to access, correct, delete, or restrict processing of your data. Since we collect minimal data and do not maintain user accounts, most of these rights are inherently satisfied. For any data-related requests, contact us using the information below.
10. Changes to this policy
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated revision date. Continued use of the Website after changes constitutes acceptance of the revised policy.
11. Contact
If you have questions about this Privacy Policy, contact us at: