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Ethereal

Medical disclaimer

The calculators, articles and other content on Ethereal are provided for general educational purposes only. They are estimates based on population equations and are not medical, nutritional or fitness advice, and they do not create a practitioner–patient relationship.

Please consult a professional if you

  • are under 18, pregnant or breastfeeding;
  • have diabetes, kidney, liver, heart or thyroid disease, or take medication that affects appetite, weight or fluid balance;
  • have a history of disordered eating, or notice the numbers becoming a source of anxiety;
  • plan to eat below 1,200 kcal (women) or 1,500 kcal (men) per day, or to lose more than 1% of your body weight per week.

Accuracy

All formulas carry an error of roughly ±10% for an individual. Results should be treated as a starting point to be adjusted against real-world progress, ideally with the support of a registered dietitian or doctor. We make no warranty as to accuracy, completeness or fitness for a particular purpose.

Emergencies

If you feel unwell, faint, or experience symptoms you are concerned about, stop dieting and seek medical care.