Disclaimer

Not medical advice

KnowYourBody.Online is not a medical provider. Nothing on this website should be interpreted as professional medical advice, nor should it be used as a substitute for consultation with a qualified doctor, nurse, dietitian, or other licensed healthcare professional.

If you are experiencing a medical emergency, call 999 (UK) or your local emergency services immediately. Do not use this website to seek help in an emergency.

Accuracy of calculator results

Our calculators use widely recognised formulas and guidelines — such as the Mifflin-St Jeor equation for calorie estimates and standard WHO BMI classifications — to provide general estimates. However:

• Results are estimates only and may not reflect your individual circumstances
• Formulas used in our tools are population-level averages and may be less accurate for athletes, people with certain medical conditions, older adults, or those with atypical body compositions
• BMI, for example, does not account for muscle mass, bone density, fat distribution, or ethnicity-related differences in health risk
• Calorie needs vary significantly based on factors our calculator cannot assess, including metabolic conditions, medications, and hormonal status
• Water intake recommendations are general guidelines; individual hydration needs differ

Results should be used as a starting point for personal awareness and discussion with a healthcare professional — not as a basis for making significant health decisions independently.

No professional relationship

Using this website does not create a doctor-patient, dietitian-client, or any other professional relationship between you and KnowYourBody.Online. We are not licensed healthcare providers. We cannot respond to medical questions or give personalised health advice.

Our tools at a glance

Here is a brief summary of what each calculator does and does not do:

External links

This website may contain links to external websites for reference or further reading. We do not control the content of external sites and cannot take responsibility for their accuracy, completeness, or suitability. Linking to an external site does not imply endorsement of its content.

Limitation of liability

To the fullest extent permitted by applicable law, KnowYourBody.Online, its owners, authors, and contributors shall not be liable for any direct, indirect, incidental, consequential, or punitive damages arising out of your use of, or inability to use, the information or tools on this website.

This includes, without limitation, any decisions made based on calculator results, reliance on information presented on this site, or delays in seeking professional medical advice.

Changes to this disclaimer

We may update this Disclaimer from time to time to reflect changes to our tools or applicable law. When we do, we will update the “Last updated” date at the top of this page. Continued use of the site constitutes acceptance of the current version.

Contact

If you have questions about this Disclaimer or any content on this site, please reach out via our contact page. We are happy to clarify anything — but please remember we cannot provide personalised medical advice.