Body Mass Index (BMI) + Life Expectancy Ratio
Calculate body mass index and waist-to-height ratio (WHtR) with the World Health Organization's classification of 2024. Evaluate cardiovascular risk based on abdominal fat distribution.
Insert data
I tuoi indicatori sono nella norma. Mantieni lo stile di vita attuale con una dieta equilibrata e attività fisica regolare.
Come utilizzare BMI + Rapporto Vita/Altezza
Insert weight and height
Enter your weight in kg and height in cm: these are the two required values to calculate classic Body Mass Index (BMI).
Measure and insert the collar size
Measure the waist circumference at belly button height with relaxed body and no tummy bulge, and enter value in cm along with biological sex.
Read BMI and WHtR together
The tool calculates both BMI (weight/height²) and WHtR (waist circumference/height), displaying two separate categories: the first measures overall weight, the second assesses abdominal fat distribution and associated cardiovascular risk.
Follow your personalized recommendation
Based on your BMI and WHtR combination, you will receive a general suggestion (maintenance, aerobic activity, nutritional or medical evaluation) - not a substitute for professional consultation.
Suggerimenti
- If your BMI is normal but your Waist-to-Hip Ratio indicates a high risk, don't ignore the data: it's an early sign of visceral fat that body weight alone can mask.
- Measure your waistline at the same time every day (e.g., in the morning on an empty stomach) to compare values correctly over time.
- This tool is purely informative. For a comprehensive clinical assessment of cardiovascular risk, consult a doctor who can integrate other factors (blood pressure, cholesterol, blood sugar, family history).
Domande frequenti
Why does BMI alone not suffice to assess health risk?
BMI does not distinguish between muscle mass and body fat, nor considers where body fat is distributed. Two people with the same BMI can have very different cardiovascular risks if one accumulates visceral fat. The WHO/OMS recommends using a fat distribution indicator like WHtR (body mass to height ratio) alongside BMI.
What is WHtR and why is it considered more reliable than just BMI?
Waist-to-Height Ratio (Waist Circumference/Height) compares waist circumference to height. Several epidemiological studies have shown it is a better predictor of cardiovascular risk than BMI, as it directly captures abdominal fat accumulation, the type of fat most associated with Type 2 diabetes and cardiovascular disease.
How is the correct circumference measured?
Measure relaxed, standing upright with the tape measure positioned horizontally at belly button height (or midpoint between last rib and iliac crest), without holding breath or constricting too tightly. Measure at the end of a normal exhalation for reproducible results.
Why are the risk thresholds for WHtR different between men and women?
Body fat distribution differs between sexes (men tend to accumulate more abdominal fat, women more gluteofemoral fat at equal metabolic risk). The tool's "high" and "very high" risk categories reflect this physiological difference in line with the latest clinical guidelines.