Health
BMI, calories, metabolism and pregnancy dates
2 calculators
In this category
Informational tools for common health indicators: body mass index, daily energy needs, basal metabolic rate, estimated body fat and key pregnancy dates.
The formulas come from published research — Mifflin-St Jeor, revised Harris-Benedict, Deurenberg, Naegele among others. Every page names the formula it uses, its limits and the population it was validated on.
Frequently asked questions
Do these replace medical advice?
No, never. They are statistical estimates built from population averages. They know nothing about your medical history, your actual body composition or your treatment. Talk to a healthcare professional about any decision that concerns you.
Why is BMI so often criticised?
BMI cannot tell muscle from fat and ignores where tissue sits on the body. A very muscular person can score high without carrying excess fat. It is a population screening indicator, not an individual diagnosis.