Terms of use
Use the calculators as educational estimates and keep their limits visible.
Permitted use
You may use the public calculators and articles for personal information and education. Do not present an output as a diagnosis, prescription, medical clearance or guaranteed performance result.
No warranty of individual accuracy
Equations describe populations and can differ from an individual measurement. You are responsible for checking inputs and deciding when professional assessment is appropriate.
References and external sites
References are provided for context. External sites control their own content and availability.
Responsible use
Do not use the site to delay emergency help or to make treatment, medication, pregnancy or medical nutrition decisions.