Waist-to-Hip Ratio Calculator: WHR & Waist-to-Height Ratio
Your waist-to-hip ratio is exactly what it sounds like: your waist measurement divided by your hip measurement. One quick calculation gives a simple picture of how your proportions are distributed — the measure researchers use when they talk about apple and pear shapes. This calculator does the maths, places your result in the World Health Organization (WHO) bands for women, and, if you add your height, works out your waist-to-height ratio too.
A gentle note before the numbers: a ratio is information, not a verdict. Bodies distribute weight differently for genetic, hormonal and life-stage reasons, and every band described on this page is a population-level health pattern — not a judgment about how a body looks or what it is worth.
- Waist-to-hip ratio calculator
- How to measure your waist and hips
- WHO thresholds for women
- WHR vs BMI vs waist-to-height ratio
- Why distribution changes after menopause
- When to talk to a doctor
- Keep exploring
- Waist-to-hip ratio FAQs
Waist-to-Hip Ratio Calculator
Your waist-to-hip ratio, in one step. Enter two tape measurements and see your ratio, its WHO category for women, and — if you add your height — your waist-to-height ratio too.
Use the same unit for every measurement below.
Measure at the narrowest point, usually just above the navel. Breathe out normally and keep the tape snug, not tight.
Measure around the fullest part of your hips and bottom, keeping the tape level all the way round.
Add your height to also see your waist-to-height ratio. Leave blank if you only want the waist-to-hip ratio.
General information only, not medical advice. A ratio is one small piece of a much bigger picture — talk to your doctor about your overall health.
How to Measure Your Waist and Hips
Waist
Stand relaxed, feet together. Find the narrowest point of your torso — for most women this is just above the navel, roughly midway between the lowest rib and the top of the hip bone. Wrap the tape around that point, keeping it level and snug but not digging in. Breathe out normally and take the reading at the end of the exhale; do not hold your stomach in. Measuring over bare skin or one thin layer gives the truest number.
Hips
Wrap the tape around the fullest part of your hips and bottom, keeping it level all the way round and your feet together. This is a circumference of the widest point, not the hip-bone width tailors sometimes use for trousers.
Getting a trustworthy reading
Measure twice and average the results. Measure at roughly the same time of day when you repeat it in future — waist readings wander a little with meals, bloating and posture, and that is normal. A soft sewing tape is ideal; a non-stretch strip of fabric measured against a ruler works too.
WHO Thresholds for Women
| Waist-to-hip ratio (women) | Category | What it means in plain words |
|---|---|---|
| 0.80 or below | Lower | Proportionally more weight carried at the hips than the waist — the pattern associated with the lowest risk band in population studies. |
| 0.81–0.85 | Moderate | A middle distribution. Most women sit here at some point in life; lifestyle habits matter far more than the decimal. |
| Above 0.85 | Higher | Proportionally more weight carried around the waist. Population studies link this pattern with higher rates of some metabolic conditions — a prompt for a routine health chat, not alarm. |
Two companion numbers appear in the calculator alongside your ratio. A waist measurement on its own is often compared with the reference of 35 inches (88 cm) for women. And the waist-to-height ratio uses one memorable boundary: keeping your waist below half your height (a ratio under 0.5) is the simple rule of thumb used in many public-health campaigns.
WHR vs BMI vs Waist-to-Height Ratio
BMI compares your weight with your height. It is quick, but it cannot tell muscle from fat, or where any of it sits. Waist-to-hip ratio ignores total weight entirely and describes distribution — two people with the same BMI can have very different ratios. Waist-to-height ratio scales your waist to your height, which is why its 0.5 boundary is so easy to remember. None of the three is “the truth” about a body; clinicians use them together, alongside blood pressure, blood tests and how you actually feel. For clothing purposes, the related tool is our body shape calculator, which uses the same measurements to describe silhouette rather than health bands.
Why Distribution Changes After Menopause
Many women notice their waist thickening in their late forties and fifties even when the scales barely move. Falling oestrogen changes where the body prefers to store fat — away from the hips and thighs and toward the abdomen. Sleep disruption, stress and gradually declining muscle mass add to the shift. A rising ratio across these years is extremely common and largely hormonal; it responds best to the unglamorous basics — strength training to protect muscle, regular walking, sleep, and protein at meals — rather than to punishing diets aimed at one body part, which cannot be spot-reduced.
When to Talk to a Doctor
Book a routine appointment — not an emergency one — if your ratio is in the higher band and you have not had basic checks (blood pressure, blood sugar, cholesterol) in a while, if your waist grows quickly over a few months without explanation, or if a number on this page is making you anxious. A good clinician will look at the whole picture and will not reduce you to a ratio. Sudden abdominal swelling, pain, or rapid unexplained change in either direction always deserves prompt attention.
General information only, not medical advice. This calculator explains widely published measurement bands. It cannot diagnose anything, and it is not a substitute for personal medical guidance.
Keep Exploring
Find every converter and calculator on the tools hub. Related reads: the body shape calculator, the body frame size calculator, the dress size converter, and styling ideas that work with your natural proportions in our wide-leg trousers outfits and elevated casual outfits guides.
Waist-to-Hip Ratio FAQs
What is a good waist-to-hip ratio for a woman?
In the WHO bands for women, 0.80 or below is the lower category, 0.81–0.85 is moderate, and above 0.85 is higher. “Good” depends on far more than this one number — overall health markers, fitness, and how you feel matter more than landing in any particular band.
How do I calculate my waist-to-hip ratio by hand?
Divide your waist circumference by your hip circumference, using the same unit for both. A 28-inch waist and 38-inch hips give 28 ÷ 38 = 0.74. The calculator above does this instantly and adds the category for you.
Is waist-to-hip ratio better than BMI?
They measure different things. BMI relates weight to height; WHR describes where weight is distributed. Health researchers often find distribution adds useful information that BMI misses, which is why the two are used together rather than one replacing the other.
Can I lower my waist-to-hip ratio?
Gradually, often, yes — through overall fat loss, strength training that preserves hip and glute muscle, sleep and stress management. You cannot choose where fat leaves from, and crash approaches tend to rebound. Small, sustainable changes are what shift the ratio over months.
Why did my ratio change after menopause even though my weight stayed the same?
Falling oestrogen redirects fat storage from the hips toward the waist, and age-related muscle loss changes both measurements. The same weight can therefore produce a different ratio — a common, hormonal pattern rather than a personal failure.
