Terms of Use & Medical Disclaimer

1. Medical disclaimer

All calculators and articles are for general information and education only. They are not medical advice, diagnosis or treatment and do not create a doctor–patient relationship.

• A pack-year result or a screening “check” is not a recommendation to have, or not to have, any test. Eligibility is decided by your doctor and your health insurer.
• Risk figures are averages from published studies, not a prediction for you.
• If you have symptoms such as a persistent cough, coughing up blood, chest pain or unexplained weight loss, see a doctor promptly — regardless of any result on this site.
• In an emergency, call your local emergency number.

2. Accuracy

We base the content on the sources named on each page and on our About page, and we correct errors when we learn of them. Guidelines and programmes change, however, and we cannot guarantee that every page is complete, current or error-free. Please check important decisions with a doctor or the official source.

3. Affiliate links

Some pages contain clearly labelled Amazon affiliate links. As an Amazon Associate I earn from qualifying purchases (affiliate disclosure). Purchases are made with Amazon, not with us; Amazon’s terms apply. Product information on Amazon is Amazon’s and the sellers’ responsibility. Talk to a pharmacist or doctor before using nicotine replacement products.

4. External links

We link to external sites such as guideline bodies and quit-smoking services. We are not responsible for their content or availability.

5. Use of the site

You may use the site for personal and professional, non-commercial purposes and link to any page. Please do not copy substantial parts of the content or the code for republication without permission, and do not attempt to disrupt the site.

6. No warranty, limitation of liability

The site is provided “as is”, free of charge and without warranty. To the extent permitted by law, we are not liable for decisions made on the basis of information on this site. This does not apply to liability for intent or gross negligence, for injury to life, body or health, or to any other liability that cannot be limited by law.

7. Privacy

See our Privacy Policy. Calculator inputs stay in your browser.

8. Changes and contact

We may update these terms; the date above shows the latest version. Questions or error reports: [email protected].