BMI cannot distinguish muscle from fat or show fat location; waist measurement adds context.
How to measure
Stand relaxed, breathe out normally and measure at your navel without sucking in. Divide waist by height using the same units.
What the number means
Under 0.5 is the common target; 0.5 to 0.6 suggests increased risk, and above 0.6 risk rises sharply.
Indian studies suggest this ratio may identify cardiometabolic risk better than BMI; we are reviewing the evidence.
Track it, not just once
Measure monthly at the same time; waist may shrink before weight with strength training.
Education, not personal medical advice. Consult a qualified clinician about diagnosis, treatment and your results.