Waist-to-Hip Ratio
LowNormal
0.89
Scenario
WHR vs BMI
Understand the differences between waist-to-hip ratio and BMI. Learn when WHR provides better health insight than BMI.
Interactive Calculator
Your Measurements
cm
cm
Your WHR Result
Pear
Shape
Low
Risk Level
WHR on Risk Scale
0.89
- 0.5
- 0.85
- 0.95
- 1.2
WHR Position vs Reference Zones
What this means: Your WHR is below 0.9, indicating low cardiovascular risk. Keep maintaining a healthy lifestyle.
The formula
The formula
What WHR Measures
Waist-to-hip ratio (WHR) is a simple anthropometric measure that compares the circumference of your waist to that of your hips. It is used worldwide as a screening tool for body fat distribution and associated cardiovascular risk. Unlike BMI, which only considers total body weight, WHR captures where fat is stored — a key distinction because abdominal (visceral) fat is more metabolically active and carries greater health risks than fat stored in the hips and thighs.
Research has shown that individuals with higher WHR — often described as an "apple" body shape — have a greater risk of cardiovascular disease, type 2 diabetes, and metabolic syndrome compared to those with lower WHR, or a "pear" body shape. The World Health Organization (WHO) formally adopted WHR as a complementary screening metric in its 2008 guidelines on waist circumference and waist-hip ratio, providing standardized cutoffs for men and women separately.
The WHR Formula
The formula for WHR is straightforward. You simply divide the circumference of your waist by the circumference of your hips, using the same unit of measurement for both:
WHR = Waist (cm) ÷ Hip (cm)
Waist = circumference of the narrowest part of the torso
Hip = circumference of the widest part of the buttocks
The same formula applies whether you use centimeters or inches — as long as both measurements use the same unit, the ratio will be identical. Our calculator supports both metric and imperial units and converts automatically when you toggle between them.
Formula Source
This calculator uses the **Waist-to-Hip Ratio classification** from **World Health Organization (WHO) Technical Report** published in **2008**.
Reference URL: https://www.who.int/publications/i/item/9789241501491
Last Verified: 2026-07-30
Worked Example
Example 1 — High risk: A man has a waist circumference of 90 cm and hip circumference of 95 cm. WHR = 90 ÷ 95 = 0.95. Since 0.95 is ≥ 0.90, this falls into the High risk category for men, indicating elevated abdominal fat and associated cardiovascular risk.
Example 2 — Low risk: A woman has a waist circumference of 72 cm and hip circumference of 96 cm. WHR = 72 ÷ 96 = 0.75. Since 0.75 is below 0.85, this falls into the Low risk category for women, suggesting a favorable fat distribution pattern.
WHR Risk Classification Table (WHO Standard)
| Risk Category | Male WHR | Female WHR | Typical Context |
|---|---|---|---|
| Low Risk | Below 0.90 | Below 0.85 | Favourable fat distribution. Fat stored predominantly in hips and thighs (pear shape). |
| High Risk | 0.90 – 1.0 | 0.85 – 0.90 | Elevated abdominal fat. Increased risk of cardiovascular disease and metabolic conditions. |
| Very High Risk | Above 1.0 | Above 0.90 | Substantial abdominal obesity. Strongly associated with metabolic syndrome and related complications. |
Why WHR Alone Is Not a Full Picture
WHR is a valuable screening tool, but it does not capture the full complexity of body composition and metabolic health. Because it is a ratio of two circumferences, it can be influenced by factors unrelated to abdominal fat. For example, a person with narrow hips due to skeletal structure may have a higher WHR without carrying excess abdominal fat. Conversely, someone with wide hips may have a misleadingly low WHR despite significant central adiposity.
WHR also does not distinguish between subcutaneous fat (the fat just under the skin) and visceral fat (the fat surrounding internal organs) — visceral fat is the more metabolically harmful of the two. Imaging techniques such as CT or MRI are the only methods that can measure visceral fat directly, though they are impractical for routine screening. For a more complete assessment, WHR is often used alongside BMI, waist circumference, and waist-to-height ratio as part of a broader health evaluation.
Known Limitations
- Does not measure total body fat or body fat percentage — it only describes fat distribution through circumference ratios.
- Measurement consistency matters: different landmarks for waist measurement (narrowest point vs. navel level vs. iliac crest) can produce meaningfully different ratios.
- Not suitable for pregnancy: hip and waist measurements change significantly throughout pregnancy and do not reflect fat distribution.
- Ethnic differences in risk thresholds: some studies suggest that Asian and South Asian populations may experience elevated metabolic risk at lower WHR cutoffs than the standard WHO thresholds.
- Does not account for muscle mass, bone structure, or overall fitness level — two individuals with the same WHR may have very different metabolic profiles.
Scenario guide
Scenario guide
What BMI measures
BMI (Body Mass Index) divides weight by height squared. It classifies you as underweight, normal, overweight, or obese — but it says nothing about where your fat is stored or how much of your weight is muscle versus fat.
What WHR measures
WHR (Waist-to-Hip Ratio) measures fat distribution by comparing waist circumference to hip circumference. A high WHR indicates central obesity (fat around the waist), which is more metabolically dangerous than peripheral fat.
When WHR provides better insight than BMI
- Muscular individuals: A muscular person may have a "high" BMI but low WHR — their weight is muscle, not dangerous fat. BMI alone would misclassify them as overweight.
- Normal weight but central fat: A person with a "normal" BMI but high WHR may have dangerous visceral fat and elevated disease risk despite looking healthy.
- Older adults: As we age, we lose muscle and gain abdominal fat. BMI may stay the same while WHR rises, revealing hidden health risk.
- Post-menopausal women: Hormonal changes shift fat to the waist. WHR captures this shift; BMI does not.
Using both together
The best approach is to use both BMI and WHR. BMI gives you a quick overview of weight status, while WHR tells you about fat distribution and metabolic risk. Together, they paint a much more complete picture of your health than either one alone.
Example: Same BMI, different risks
Two 40-year-old women both weigh 70 kg and are 165 cm tall (BMI = 25.7, "overweight"). But Woman A has a WHR of 0.75 (low risk) while Woman B has a WHR of 0.90 (high risk). Woman B has significantly higher cardiovascular and diabetes risk despite the same BMI — because her fat is stored around her waist, not her hips.
FAQ
Frequently Asked Questions
WHR captures fat distribution, which is more closely linked to metabolic health risks than BMI. However, BMI is easier to calculate and provides a quick weight-status overview. Using both together is ideal.
Yes. A person with normal BMI can still have dangerous amounts of visceral fat (high WHR). This is called "normal-weight central obesity" and carries elevated health risks.
Yes. A muscular person may have a high BMI due to muscle mass but a low WHR because their fat is not concentrated around the waist. WHR helps distinguish this from true obesity.
Track both if possible. BMI gives a weight-status snapshot; WHR reveals fat distribution and metabolic risk. WHR is especially valuable if you exercise regularly or are over 40.
Healthy BMI is 18.5-24.9. Healthy WHR for women is below 0.80 and for men below 0.90. These measure different things — BMI assesses weight relative to height, while WHR assesses fat distribution.
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