BMI Calculator

BMI Calculator is a very useful tool that will show your Body Mass Index. Body Mass Index (BMI) is a body fat measure. It's based on height and weight and shows you either you have normal weight, are underweight, or are overweight. This information is crucial when it comes to tracking your health.

BMI Calculator (Imperial system)

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BMI Calculator (Metric System)

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BMI Categories

There are 4 main BMI categories to know about:

If you are severely underweight, overweight, or even obese, your weight is considered as unhealthy. Consider visiting a doctor if you're concerned about the weight you have.

Who shouldn't use BMI Calculator?

BMI calculators shouldn't be used by muscle builders, pregnant women, old people or young children. If you have a lot of muscles, it's going to be hard to calculate your BMI since we take a general body weight, and people who have big muscles usually have less fat than usual.

Children haven't completed their growth process, and older people might lose their muscle mass. During pregnancy, a woman's body changes, so it's impossible to calculate a standard body mass for this person.

What does being overweight or underweight mean?

It's important to know what your underweight or overweight might mean, so here're the main risks:

Underweight

Being underweight might be an underlying condition for deseases such as Anorexia nervosa etc. Consider visiting a doctor if you don't want to get in trouble

Overweight

BMI Formula

And the last thing that is important to understand is the way BMI is being calculated:

USC Units:

BMI = 703 × mass (lbs) / height2 (in)

SI, Metric Units:

BMI = mass (kg) / height2 (m)