Health

BMI Calculator

Calculate your Body Mass Index instantly. Enter your weight and height to see your BMI category and ideal weight range.

Unit system

Metric (kg / cm)

Imperial (lbs / inch)

Weight (kg)

Height (cm)

Your BMI

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Under (<18.5)Normal (18.5–25)Over (25–30)Obese (>30)

Ideal weight (BMI 22)

Healthy weight range

⚕️ BMI is an indicator, not a medical diagnosis. Consult your doctor for personal advice.

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BMI Categories

Category	BMI range
● Underweight	< 18.5
● Normal weight	18.5 – 24.9
● Overweight	25.0 – 29.9
● Obese	≥ 30.0

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Frequently Asked Questions

What is a healthy BMI?▼

A BMI between 18.5 and 24.9 is considered healthy for adults. Below 18.5 is underweight, 25-29.9 is overweight, and 30 or above is obese. BMI is a general guideline and does not account for muscle mass or body composition.

Is BMI accurate for everyone?▼

BMI has limitations. It does not distinguish between muscle and fat, so athletes may have a high BMI while being healthy. It also does not account for age, gender differences in fat distribution, or ethnicity. Always consult a doctor for medical advice.

What is the formula for BMI?▼

BMI = weight (kg) ÷ height (m)². For example: 70 kg ÷ (1.75 × 1.75) = 70 ÷ 3.0625 = 22.9 BMI.