What is a healthy BMI range?

A healthy BMI range is typically 18.5 to 24.9. Below 18.5 is considered underweight, 25-29.9 is overweight, and 30 or above is obese.

How is BMI calculated?

BMI is calculated by dividing weight in kilograms by the square of height in meters. Formula: BMI = weight (kg) / height² (m²).

Is BMI accurate for everyone?

BMI is a general indicator and may not be accurate for athletes, pregnant women, elderly, or children. It doesn't distinguish between muscle and fat mass.

BMI Calculator — Free Body Mass Index Tool

Measurement Units

Metric (kg, cm) Imperial (lbs, ft/in)

Height

Example: 175

Weight

Example: 70

BMI = Weight (kg) ÷ Height² (m²). Consult healthcare professionals for medical advice.

BMI Categories & Health Information

Normal Weight (18.5 - 24.9)

Associated with the lowest health risks. Maintain healthy diet and regular exercise.

Overweight (25.0 - 29.9)

Increased risk of chronic diseases. Consider weight management through diet and exercise.

Underweight (<18.5)

May indicate nutritional deficiencies. Consult healthcare provider for personalized advice.

Obese (≥30.0)

Significantly increased health risks. Medical supervision recommended for weight management.

Important Health Disclaimer

BMI is a general screening tool and may not be accurate for everyone. It doesn't account for muscle mass, bone density, age, gender, or ethnicity. Athletes and muscular individuals may have high BMI despite being healthy. Always consult healthcare professionals for personalized medical advice and treatment.

BMI Calculator

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BMI Categories