Privacy Policy
Last updated: 31 March 2026
1. Who We Are
bmicalculatorsingapore.com (“we”, “us”, “our”) operates the website at https://www.bmicalculatorsingapore.com, a free Singapore health calculator suite built on Health Promotion Board (HPB) Asian standards. This Privacy Policy explains how we handle information when you use our website.
2. Information We Collect
Calculator inputs: All calculations (BMI, calorie, sleep, etc.) are performed entirely in your browser. We do not transmit, store, or log any health data you enter into our calculators. Your numbers never leave your device.
Analytics data: We use Google Analytics 4 (GA4) to collect anonymised usage data including page views, session duration, device type, and approximate geographic location (country/city level). This data is aggregated and cannot identify you personally.
Cookies: We use first-party cookies for analytics and third-party cookies served by Google AdSense and Google Analytics. You can manage or disable cookies through your browser settings at any time.
3. Google AdSense & Advertising
We display advertisements through Google AdSense. Google may use cookies and web beacons to serve personalised ads based on your browsing activity across websites. Google's advertising practices are governed by the Google Privacy Policy.
You can opt out of personalised advertising by visiting Google Ad Settings or by using the Network Advertising Initiative opt-out tool.
4. Affiliate Links
Some pages on bmicalculatorsingapore.com contain affiliate links to third-party retailers including iHerb, Amazon Singapore, Lazada, and Shopee. When you click an affiliate link and make a purchase, we may earn a commission at no additional cost to you. These third-party websites have their own privacy policies which govern any data you provide to them. We are not responsible for their data practices. Please see our Affiliate Disclosure for full details.
5. How We Use Information
- To understand how visitors use our website and improve our calculators
- To measure the effectiveness of our content and identify popular pages
- To serve relevant advertisements through Google AdSense
- To comply with legal obligations
6. Data Sharing & Third Parties
We do not sell, rent, or trade your personal information to third parties. We share anonymised analytics data with Google Analytics and ad impression data with Google AdSense solely for the purposes described above.
We may disclose information if required by Singapore law or a valid legal process, or to protect the rights, property, or safety of our users or the public.
7. Data Retention
As we do not collect personal data directly, we have no personal data to retain. Anonymised analytics data is retained by Google Analytics for 14 months by default and governed by Google's data retention policies.
8. Children's Privacy
Our website is not directed at children under the age of 13. We do not knowingly collect personal information from children. Our children's BMI calculator pages include appropriate health messaging and do not display weight-loss affiliate products.
9. Your Rights (Singapore PDPA)
Under Singapore's Personal Data Protection Act (PDPA), you have the right to access and correct personal data we hold about you. As we do not collect identifiable personal data, there is generally no personal data held about individual users.
If you have concerns about data associated with your use of this website, please contact us at the address below. For Google Analytics data, you may also use the Google Analytics opt-out browser add-on.
10. Changes to This Policy
We may update this Privacy Policy from time to time. Material changes will be reflected in the “Last updated” date at the top of this page. Continued use of the website after changes are posted constitutes acceptance of the updated policy.
11. Contact
If you have any questions about this Privacy Policy or our data practices, please contact us at: hello@bmicalculatorsingapore.com