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BMI Calculator

Estimate body mass index from height and weight.

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Your BMI
22.9
Healthy weight

Within healthy range

BMI range

See exactly where you are

Your BMI is shown against the standard adult BMI categories.

Current category
Healthy weight
You
22.9
Under
< 18.5
Healthy
18.5 โ€“ 24.9
Over
25 โ€“ 29.9
Obesity
30+
1518.5253040+
Next category
Overweight
BMI threshold
25

You are 2.1 BMI points below the Overweight threshold.

At your height, the threshold corresponds to approximately 76.6 kg.

Healthy BMI
18.5 โ€“ 24.9

Common adult BMI range classified as healthy weight.

Approx. healthy weight
56.7 โ€“ 76.3 kg

Calculated from your height and the BMI range of 18.5โ€“24.9.

Reference

BMI categories

Underweight
BMI below 18.5
Healthy weight
BMI 18.5 โ€“ 24.9
Overweight
BMI 25.0 โ€“ 29.9
Obesity
BMI 30.0 or higher

How is BMI calculated?

BMI, or Body Mass Index, is calculated using a person's weight and height. For metric measurements, weight in kilograms is divided by height in meters squared.

BMI = weight (kg) รท heightยฒ (m)

BMI is a screening measure rather than a diagnosis. It does not directly measure body fat and may not fully reflect health for every individual, including people with higher muscle mass.

Help

BMI Calculator FAQ

What does BMI mean?+

BMI stands for Body Mass Index. It is a screening measurement based on height and weight.

When does overweight become obesity?+

For adults, the commonly used BMI threshold for obesity begins at 30.0. The overweight category is generally 25.0 to 29.9.

Can I use pounds and inches?+

Yes. Select Imperial and enter your weight in pounds and height in inches.

Is BMI a medical diagnosis?+

No. BMI is a screening measure and should not be used by itself to diagnose a health condition.

Privacy: Your height and weight are processed directly in your browser. They are not uploaded to our server.

BMI Calculator

Calculate your Body Mass Index (BMI) instantly from your height and weight. Free and private โ€” the calculation happens directly in your browser, no account needed.

How to calculate your BMI

  1. Enter your height. Type your height into the field.
  2. Enter your weight. Type your weight into the field.
  3. Read your result. See your BMI value and weight category instantly.

BMI Calculator FAQ

What does BMI mean?

BMI stands for Body Mass Index. It is a screening measurement based on height and weight.

When does overweight become obesity?

For adults, the commonly used BMI threshold for obesity begins at 30.0. The overweight category is generally 25.0 to 29.9.

Can I use pounds and inches?

Yes. Select Imperial and enter your weight in pounds and height in inches.

Is BMI a medical diagnosis?

No. BMI is a screening measure and should not be used by itself to diagnose a health condition.

What is a healthy BMI?

A BMI between 18.5 and 24.9 is generally considered a healthy range for most adults.

Is BMI accurate for everyone?

BMI is a screening estimate. It may not suit athletes, pregnant women, children or older adults.

Is my data uploaded?

No โ€” the calculation happens entirely in your browser.

Is the BMI calculator free?

Yes, completely free with no sign-up.