HandyGrid collection
Other Health Calculators
Nutrition, kidney-function, body-measurement, and educational health estimates.
Start here: practical tutorial
Read a health equation as a reference, not a diagnosis
Use current measurements, confirm every requested unit, read the equation assumptions, and keep the original inputs with the estimate so it can be reproduced.
- Choose the tool matching the input you have and the result you need.
- Confirm every unit, option and assumption before running it.
- Review the example, limitations and output before using the result.
Worked example
An eGFR estimate depends on creatinine, age, sex and equation; a laboratory may use its own validated process.
What this does not replace
No result establishes a condition or treatment. Symptoms and urgent concerns require professional evaluation.