BMI Calculator Tool

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Accurate BMI Calculator

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BMI Calculator

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Height (cm)

Weight (kg)




BMI Calculator - Calculate Your Body Mass Index Online

Use our free BMI calculator to check your body mass index and see if you're underweight, normal weight, overweight, or obese. Enter your weight and height to get started.

What is BMI?

BMI, or Body Mass Index, is a measurement that compares your weight to your height. It's a quick and easy way to determine if you're underweight, normal weight, overweight, or obese.

The formula to calculate your BMI is:

BMI = weight (kg) / (height (m) * height (m))

If you prefer to use pounds and inches, you can use this formula:

BMI = (weight (lbs) / (height (in) * height (in))) * 703

Once you've calculated your BMI, you can use a BMI chart to see which category you fall into.

BMI Categories

Here are the BMI categories:

  • Underweight: BMI less than 18.5
  • Normal weight: BMI between 18.5 and 24.9
  • Overweight: BMI between 25 and 29.9
  • Obese: BMI 30 or higher

Is BMI Accurate?

While BMI is a useful measurement, it's not always accurate. For example, athletes with a lot of muscle mass may have a high BMI, even though they're not overweight or obese. Similarly, older people may have a lower BMI, even though they have a higher percentage of body fat.

That's why it's important to also look at other factors, such as waist circumference, body composition, and overall health, when determining if someone is at a healthy weight.

Tools are provided for informational and personal use only, with no guarantees of accuracy or suitability; TuteeHUB disclaims liability for errors or decisions based on outputs, advising verification for critical tasks.

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About BMI Calculator

In summary, the Body Mass Index (BMI) is a measure of body fat based on height and weight. It's a useful screening tool to determine if someone is at a healthy weight or at risk of health problems due to being overweight or obese. However, it's important to also consider other factors such as waist circumference, body composition, and overall health when determining if someone is at a healthy weight. If you're concerned about your BMI, talk to your doctor or a registered dietitian for advice on how to improve it.

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What is a healthy BMI?

A healthy BMI is between 18.5 and 24.9. However, it's important to also look at other factors, such as waist circumference, body composition, and overall health, when determining if someone is at a healthy weight.

What BMI is considered overweight?

A BMI between 25 and 29.9 is considered overweight.

What BMI is considered obese?

A BMI of 30 or higher is considered obese.

Is BMI the same for men and women?

Yes, the BMI formula is the same for men and women.

Can BMI be used for children?

BMI can be used as a screening tool for children, but it's not always accurate. Children's BMI values change as they grow, so their BMI should be compared to other children of the same age and sex using BMI percentiles.

How can I improve my BMI?

If your BMI is higher than it should be, there are several things you can do to improve it, such as:

  • Eating a healthy, balanced diet
  • Exercising regularly
  • Getting enough sleep
  • Reducing stress
  • Avoiding smoking and excessive drinking

If you're not sure how to improve your BMI, talk to your doctor or a registered dietitian.

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