Free BMI Calculator

Quickly calculate your Body Mass Index, understand your BMI category, and track your progress over time.

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What is BMI?

BMI is a simple estimate based on your height and weight. It can help you understand whether your weight is in a common healthy range.

Do You Know Your BMI?

Underweight
Below 18.5
May indicate low body weight.
Healthy Weight
18.5–24.9
Common healthy BMI range.
Overweight
25–29.9
May indicate excess body weight.
Obesity
30+
Higher health risk category.
Check Your BMI (Free)

Track your BMI over time

Create BMI check-ins and see your recent history in your dashboard. This makes it easier to monitor progress instead of relying on one result.

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Simple. Free. Fast.

No complicated health forms. Just enter your height and weight to get your BMI result instantly.

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Important note

BMI is a general screening tool and does not measure body fat directly. Athletes, children, older adults, and people with higher muscle mass may need a more complete health assessment from a medical professional.