How to Calculate Your Waist to Hip Ratio

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Your waist to hip ratio is a measure of how fat is distributed around your body. Those with a higher percentage around the waist are sometimes considered "apple-shaped," while those with bigger hips are often noted as "pear-shaped." Women with a waist-to-hip ratio of 0.8 or less and men with a ratio of 0.9 or less are considered "safe." A WHR of 1.0 or higher, for either gender, is considered "at risk" for overweight-associated health problems. Knowing your hip-to-waist ratio can help you gauge your progress for fitness or dieting routines and can keep you aware of your health. [1] But make sure to see a doctor if you have any worries and keep in mind that this is only one measurement out of many possible ones.

Part 1
Part 1 of 2:

Measuring Yourself

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  1. The only way to accurately measure around your body is with a flexible, wrap-able tape measure.
    • For professional results, which are not necessary for home testing, the World Health Organization suggests stretch-resistant tape with 100g of tension. [2]
  2. Don't slouch or lean, as this can throw off the measurement. You also don't want to hold your breath or suck in your stomach, as this will give an inaccurate reading. [3]
    • You should be wearing very little or no clothing. Get your measurements as close to the skin as possible.
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  3. This is going to get the most accurate measurement. Try to get the measurement in the space between finishing to exhale and beginning another inhalation. [4]
  4. More often than not this is just above your belly button, up above the knobs of your hip bones. Keep the tape flat against your belly, not kinked or twisted. You don't want to squeeze or pull, just get a snug measurement.
    • Write this measurement down as "Waist Circumference." For an example, say this is 26"
    • It does not matter if you use inches or centimeters, so long as you use the same measurement for your hips, too. [5]
  5. This is frequently the widest part of your butt, just below where your thighs hinge. Wrap your tape measure, again trying not to kink, twist, or pull tightly on it.
    • Write this measurement down as "Hip Circumference." For an example, say this is 32"
    • If you measured in inches for the waist, use inches again here. If you used centimeters before, use centimeters now, etc.
  6. This is the clinical standard, but if you're just curious for a rough figure you can skip this step. Doctors do this to ensure they get the most accurate reading possible.
  7. The result is your waist-to-hip ratio, or WHR. Simply pull up a calculator and divide the waist measurement by the hip measurement:
    • For an example, assume your waist circumference is 26" and your hip circumference is 32"
    • WHR = .8125
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Part 2
Part 2 of 2:

Understanding Your Waist to Hip Ratio

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  1. A healthy male generally has slightly bigger hips than waist, but there should not be a huge difference. This is why the ratio for a healthy male is close to 1. Note, however, that small changes make a big deal for men -- any ratio above .95 poses a health risk. Staying at .90 or lower is ideal.
  2. Women naturally have bigger hips for childbearing, meaning a healthy ratio for women is much lower than for men. This is why their ratio is generally lower -- they are dividing by a bigger hip circumference in general. Anything above .85 is a reason to reexamine diet and exercise habits. [6]
  3. Your waist to hip ratio is a proven indicator of future cardiovascular disease, diabetes, high blood pressure, and gall bladder disease. [7]
  4. Lowering your waist to hip ratio to a healthy level is largely a factor of diet and exercise. Aiming to eat more fruits and vegetables, lean meats (like chicken, turkey, and fish), and cut back on total food consumption is the best way to fight an unhealthy WHR. You should also consider:
    • Quitting smoking
    • Walking, running, or biking 30 minutes a day.
    • Talking to your doctor about cholesterol or blood pressure medication
    • Cutting back on alcohol, soda, and other "empty" calories. [8]
  5. While waist to hip ratio is an important indicator of health, it is not the only one you should pay attention to. Use another test, such as your Body Mass Index (BMI) , to help put this number in context.
    • BMI is a measure of your total body fat, meaning how much of your body is comprised of fat. People with naturally atypical body shapes (very tall or short, broad or skinny, etc.) tend to learn more from BMI than from WHR.
    • While not a measure of obesity, you should have blood pressure tests if you're worried about the effects of a poor diet or lack of physical activity.
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Expert Q&A

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  • Question
    How often should I take body measurements?
    Melody Sayers, MS, RD, NASM-CPT
    Registered Dietician & Personal Trainer
    Melody Sayers is a Registered Dietitian and NASM (National Academy of Sports Medicine) Certified Personal Trainer. She is the owner of Elevate Your Plate®, a private nutrition counseling and personal training practice, focused on an evidence-based, individualized, realistic, and results-driven approach to improving one's health. With over 8 years of experience, Melody has worked in both the private and public health sectors, helping both individuals and communities achieve milestones in managing their weight and preventing disease. She currently holds a Certificate in Adult Weight Management and a Master of Science in Nutrition, Dietetics, and Food Science from the California State University - Northridge.
    Melody Sayers, MS, RD, NASM-CPT
    Registered Dietician & Personal Trainer
    Expert Answer
    There are no specific guidelines regarding the frequency of taking measurements, such as the waist-to-hip ratio. It is always best to conduct any assessments prior to starting an exercise program in order to obtain baseline data. Once you have noticed visual results as a result of your exercise efforts or you feel as though your clothes fit differently, you can then repeat the measurement. It is important to use the same measuring tool(s) in order to ensure your results are accurate. Taking body measurements is a great way to monitor your progress.
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      Tips

      • If you have trouble positioning the measuring tape properly or reading the measurements, ask a friend to help.
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      • If you're actively trying to lose weight, revisit your WHR every 1 to 6 months. Write the measurement down every time you take it as a means of tracking your progress over time. As you lose weight your waist-to-hip ratio will go down, too.
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      Warnings

      • Waist to hip ratio is not an all-conclusive test. While it is a good measurement to take, it alone can not tell you if you are healthy or not. It is just a small part of a doctor's examination.
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      Things You'll Need

      • Flexible measuring tape
      • Pen or pencil
      • Notebook
      • Calculator

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      References

      1. ↑ Melody Sayers, MS, RD, NASM-CPT. Registered Dietician & Personal Trainer. Expert Interview. 6 May 2020.
      2. ↑ http://apps.who.int/iris/bitstream/10665/44583/1/9789241501491_eng.pdf
      3. ↑ http://www.memorialcare.org/events-education/waist-hip-ratio-calculator
      4. ↑ http://apps.who.int/iris/bitstream/10665/44583/1/9789241501491_eng.pdf
      5. ↑ http://www.bmi-calculator.net/waist-to-hip-ratio-calculator/waist-circumference.php
      6. ↑ http://apps.who.int/iris/bitstream/10665/44583/1/9789241501491_eng.pdf
      7. ↑ https://www.nhlbi.nih.gov/health/educational/lose_wt/risk.htm
      8. ↑ https://www.nhlbi.nih.gov/health/educational/lose_wt/risk.htm

      About This Article

      Article Summary X

      Your waist-to-hip ratio is a good measurement of how fat is distributed around your body. To calculate the ratio, start by standing in a relaxed posture with your feet close together. Take a breath and exhale fully. Wrap a tape measure around the skinniest part of your waist and write down the measurement. Then, use the tape measure to measure the widest part of your hips, and write down that measurement. Divide the first measurement by the second measurement to get your ratio. For example, if you have a 22-inch waist and 36-inch hip measurement, you would divide 22 by 36 and get 0.61. Therefore, your waist-to-hip ratio would be 0.61. Generally, a waist-to-hip ratio should be lower than 0.90 for men and lower than 0.80 for women. To learn more about what waist-to-hip ratios can be used for, keep reading!

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