📏   Health Tools · Body Composition

Waist-to-Height Ratio Calculator

Check whether your waist size is appropriate for your height

📏 What does this tool do?
This tool compares your waist circumference with your height.

A larger waist size may indicate increased abdominal fat, which can be associated with diabetes, fatty liver disease, high blood pressure and heart disease.

A waist-to-height ratio below 0.5 is generally considered preferable for most adults.
Enter Your Measurements
Enter your height and waist circumference below. Select the unit that is most convenient for you.
How to measure height
  • Remove shoes
  • Stand straight against a wall
  • Keep heels touching the floor
  • Look straight ahead
  • Measure from the floor to the top of the head
Use the most recent reliable measurement if available.
Please check the entered value.

How to measure waist circumference
  • Stand normally
  • Relax your abdomen
  • Place the measuring tape around the waist at about belly-button level
  • Do not pull the tape tightly
  • Measure after breathing out normally
Enter the measurement in centimetres or inches.
Please check the entered value.
Values You Entered
Waist-to-Height Ratio
⚠️ Medical Disclaimer
This tool estimates central obesity risk only. It does not diagnose obesity, diabetes, fatty liver disease or any other medical condition.
Dr. Seneth Gajasinghe
Medically Reviewed By
MBBS (Col) · MD (Col) · SLMC No. 27329
This tool uses the waist-to-height ratio method. Results are for educational guidance only and do not replace clinical assessment.
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What Is Waist-to-Height Ratio?

This tool compares your waist circumference with your height. A larger waist size may indicate increased abdominal fat, which can be associated with diabetes, fatty liver disease, high blood pressure and heart disease. A waist-to-height ratio below 0.5 is generally considered preferable for most adults.

How to Measure Height Correctly

Remove your shoes before measuring. Stand straight against a wall, with your heels flat on the floor. Look straight ahead. Measure from the floor to the top of your head. Use the most recent reliable measurement if available.

How to Measure Waist Circumference Correctly

Stand in a relaxed, upright position. Breathe out normally. Place the measuring tape horizontally around your abdomen at the level of the belly button. The tape should be snug but not pulled tightly. Record the measurement in centimetres or inches.

What Does the Result Mean?

RatioCategoryWhat it suggests
Below 0.50Lower central obesity riskYour waist measurement is less than half your height. This is generally considered a favourable result.
0.50 – 0.59Increased central obesity riskYour waist measurement is greater than half your height. This may be associated with increased risk of diabetes, fatty liver disease, high blood pressure and heart disease.
0.60 or aboveHigh central obesity riskYour waist size is substantially greater than half your height. Medical review and lifestyle measures such as weight reduction, healthy eating and regular physical activity may be useful.

Why Is Abdominal Fat Important?

Fat stored around the abdomen — called visceral fat — is closely linked to metabolic disease. Unlike subcutaneous fat under the skin, visceral fat surrounds internal organs and is more metabolically active. It is associated with insulin resistance, type 2 diabetes, fatty liver disease, high blood pressure and cardiovascular disease.

The waist-to-height ratio is a useful screening measure because it accounts for body frame size by comparing waist circumference to height, rather than using a fixed waist measurement cutoff that may not suit all body types.

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Frequently Asked Questions

Common questions about waist-to-height ratio and central obesity, answered by Sineth Hospitals.

Generally below 0.5. A ratio below 0.5 means your waist measurement is less than half your height, which is associated with lower central obesity risk.
It provides different information and focuses on abdominal fat. Waist-to-height ratio specifically measures central fat distribution, while BMI uses overall weight relative to height. Both are useful screening tools with different strengths.
Yes. Some people have a normal BMI but carry excess weight around the abdomen. This pattern — sometimes called normal weight central obesity — can still carry increased metabolic risk, including for diabetes and heart disease.
No. This tool estimates central obesity risk only. It does not diagnose obesity or any medical condition. Please consult a doctor for a full assessment.
No. This tool does not diagnose fatty liver disease or any other condition. It provides an estimate of central obesity risk only. For fatty liver assessment, use the Fatty Liver Risk Calculator or speak to your doctor.
⚠️
Medical Disclaimer
This tool is for general educational purposes only. It estimates central obesity risk using the waist-to-height ratio and does not diagnose obesity, diabetes, fatty liver disease or any other medical condition. Results should not replace professional medical advice, diagnosis or treatment. Always consult a doctor for personalised medical advice.