Waist circumference is used in several health calculators to assess metabolic risk and cardiovascular health. Measuring it correctly — at the right anatomical point, with the right technique — ensures your result accurately reflects your health status.
Open the Waist-to-Height Ratio Calculator CalculatorStand upright with feet together and breathe normally — do not hold your breath.
Locate the midpoint between the lowest rib and the top of the hip bone (iliac crest) on your side.
Wrap the measuring tape horizontally around this midpoint — the tape should be parallel to the floor.
Ensure the tape is snug against the skin but not compressing it.
Take the reading at the end of a normal exhale.
Record the measurement in centimetres and enter it into the calculator.
These ranges are educational references only and do not replace professional medical evaluation.
Healio360 stores your waist-to-height ratio in your Health History. Tracking this metric over months gives your Health Intelligence dashboard the data it needs to identify trends in metabolic health, even before other markers change.
View Health IntelligenceWhere exactly should I measure my waist?
Measure at the midpoint between your lowest rib and the top of your hip bone (iliac crest), not at the belly button.
What is a healthy waist-to-height ratio?
A ratio below 0.5 is generally considered healthy for most adults, meaning your waist should be less than half your height.
When is the best time to measure waist circumference?
Measure first thing in the morning before eating, or at least 2 hours after a meal, for the most consistent results.