Tools

How to use these tools safely

The calculators and trackers on this site are educational and privacy-friendly. They run in your browser, do not store health data, and should not be used as medical diagnosis. BMI is a screening tool, water estimates are rough guides, and calorie-deficit examples are explanations rather than prescriptions.

For the strongest results, pair tools with the educational guides below. A checklist is more useful when it supports meals, movement, sleep, and stress habits you can actually repeat.