Waist to Hip Ratio Calculator

Calculate your waist-to-hip ratio and assess your cardiovascular health risk as low, moderate, or high. Free, instant, no signup.

Formula: WHR = waist circumference ÷ hip circumference

How to use the Waist to Hip Ratio Calculator

  1. Enter your values. Fill in the fields with your numbers.
  2. Calculate. Press Calculate to run the waist to hip ratio calculator.
  3. Use the result. Copy the result or try a related tool next.

Why use our Waist to Hip Ratio Calculator

Instant results. Enter your figures and the waist to hip ratio calculator returns an answer in seconds.
Free & private. Runs in your browser — no signup, and nothing is sent to a server.
Accurate. Uses standard formulas so you can rely on the numbers.

Free to use — premium coming soon

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About the Waist to Hip Ratio Calculator

The Waist to Hip Ratio Calculator divides your waist circumference by your hip circumference to estimate how your body fat is distributed. Enter both measurements in the same unit (centimetres or inches) and the tool returns a single decimal, plus the World Health Organization risk band that matches it. The arithmetic is simple, WHR = waist / hip, so a 71 cm waist and 89 cm hips give 0.80. What makes the number useful is that it focuses on abdominal fat, the type most strongly linked to cardiovascular and metabolic problems, rather than overall weight the way BMI does.

Use this calculator when you want a quick, equipment-light check on health risk that BMI alone can miss. Because it compares two measurements taken at the same body, it stays meaningful even if you are muscular or carry weight that a height-and-weight formula would flag misleadingly. People commonly run it alongside BMI before a doctor's visit, while tracking changes during a fitness programme, or simply to understand whether they tend toward an apple shape (fat around the middle) or a pear shape (fat around the hips). It is a screening signal, not a diagnosis.

Accuracy depends almost entirely on how you measure. Wrap a flexible tape around the narrowest part of your torso, roughly level with or just above the navel, keeping it snug but not compressing the skin, and measure on a normal exhale without sucking in. For hips, find the widest part of the buttocks and keep the tape horizontal all the way around. Measure twice and average the readings. The calculator then applies WHO cut-offs: for men, 0.90 or below is lower risk and above is elevated; for women the threshold is 0.85.

Everything in this tool runs locally in your browser. Your waist and hip figures are used only to compute the ratio and its risk band on your own device, are never uploaded to a server, and disappear when you close or refresh the page. That makes it safe to use for personal health checks without creating an account or sharing data. Keep in mind it is a general guide: WHR is unreliable during pregnancy, for children, for people under about five feet tall, and at very high BMI, so treat any elevated result as a prompt to speak with a healthcare professional rather than a conclusion.

Frequently asked questions

What waist to hip ratio is considered healthy?

The World Health Organization considers a ratio of 0.90 or below lower risk for men and 0.85 or below lower risk for women. Ratios above these cut-offs indicate more abdominal fat and a greater risk of conditions like heart disease and type 2 diabetes.

Where exactly should I measure my waist and hips?

Measure the waist at its narrowest point, usually level with or just above the belly button, on a normal breath out. Measure the hips at the widest part of the buttocks, keeping the tape horizontal. Use the same unit for both and measure twice for accuracy.

Does it matter whether I use inches or centimetres?

No. Because the calculator divides one measurement by the other, the units cancel out, so the ratio is the same as long as you use the same unit for both waist and hips.

Is waist to hip ratio better than BMI?

They measure different things. BMI estimates overall body weight relative to height, while WHR specifically reflects where fat is stored. WHR can flag abdominal-fat risk that BMI misses, so many people use the two together rather than choosing one.

Who should not rely on this calculator?

WHR is not suitable during pregnancy or for children, and it loses accuracy for people under roughly five feet tall or with a very high BMI (around 35 or above). In those cases, ask a healthcare professional for a more appropriate assessment.

From our blog

Miles to Steps: How to Convert Distance Into an Accurate Step Count

By the Super Simple Digital Tools Team · Updated June 2026

If your treadmill, running app, or commute tells you the miles but your step challenge wants steps, you need a way to bridge the two. The conversion is straightforward in principle: take the distance in miles and multiply it by how many steps you personally take to cover one mile. The catch is that 'steps per mile' is not a fixed constant, and using the wrong one can throw your total off by hundreds of steps over a few miles.

The most quoted reference numbers come from a 2008 American College of Sports Medicine study, which measured roughly 2,252 steps for a mile at an average 3 mph walk, about 1,935 for a brisk 4 mph walk, and around 1,672 down to 1,400 steps for running at 6 to 7.5 mph. These make excellent defaults, but they describe an average person. Your own rate depends on stride length, which in turn depends mostly on your height and how fast you are moving.

To estimate steps per mile yourself, divide the 63,360 inches in a mile by your stride length in inches. A quick rule of thumb sets walking stride at about 41 to 43 percent of your height and running stride at about 55 percent. So a 5'6" (66-inch) person has a walking stride near 27 inches, giving roughly 2,350 steps per mile, and a running stride near 36 inches, giving closer to 1,760. Plug whichever matches your activity into the calculator for a far better fit than a one-size-fits-all average.

For the most accurate result, skip the estimate and measure. Mark off a known distance, such as 20 or 30 feet, walk it naturally a few times while counting your steps, and divide the distance by the step count to get your true stride length. People who do this often find their real stride differs noticeably from the height-based guess, especially if they have an unusually long or short gait or walk on hills.

Once you know your personal rate, the calculator becomes a fast everyday tool: log a 3-mile run as steps, see how many miles it takes to hit 10,000 steps (about 4.4 at average pace), or compare the step cost of walking versus running the same route. Keep in mind it is always an estimate, since terrain, tiredness, and pace shift your stride moment to moment. Used with a measured stride, though, it gets you reliably close without any extra hardware.

  • Measure your real stride over a marked 20 to 30 foot distance instead of trusting the height-based average for a tighter result.
  • Use a higher steps-per-mile rate (around 2,250) for casual walking and a lower one (around 1,500 to 1,700) when the miles were run.
  • To reverse the math, divide your step goal by your steps per mile: 10,000 steps is about 4.4 miles at an average walking pace.
  • Re-check your stride if you switch surfaces or speeds, since hills and faster paces lengthen or shorten each step.

Read the full guide →

Tool by the Super Simple Digital Tools Team. Reviewed by our editorial team. Free to use, no signup required.

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