BMI (Body Mass Index) is a screening measure using weight and height to estimate whether a person is underweight, normal weight, overweight, or obese.

What is a normal BMI range for adults?

For adults, a BMI of 18.5 to 24.9 is generally considered the normal range.

How much weight should I gain or lose to reach normal BMI?

This calculator estimates the healthy weight range for your height (BMI 18.5–24.9) and shows how many kilograms you may need to gain or lose to enter the normal BMI range.

Is BMI accurate for everyone?

BMI is not perfect for everyone. Athletes, pregnant individuals, and people with fluid retention may need other assessments like waist circumference or clinical evaluation.

Should children use the same BMI categories?

No. For under 18, BMI-for-age percentiles should be used instead of adult BMI cutoffs.

BMI Calculator + Healthy Weight Range

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Education in Karachi

BMI Calculator (Adults)

BMI Calculator

Calculate your Body Mass Index (BMI), see your category, healthy weight range, and how much to gain/lose for normal BMI.

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Height (cm)

Weight (kg)

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Height (ft)

Height (in)

Weight (lb)

Your BMI

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Under Normal Over Obese