Specialized Use Case

BMI Calculator for Weight Loss Goals

Planning your health journey? Find out exactly how your current height and weight translate to standard BMI classes. Estimate your target weight thresholds and the precise pounds or kilograms needed to achieve a healthy weight.

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Interactive Console

BMI Range Chart

Standard World Health Organization (WHO) categories

Category	Range
Underweight	< 18.5
Normal weight	18.5 – 24.9
Overweight	25.0 – 29.9
Obese Class I	30.0 – 34.9
Obese Class II	35.0 – 39.9
Obese Class III	≥ 40.0

This chart applies to adults aged 20 years and older. For children and teens, BMI is interpreted differently using age and sex-specific percentiles.

Did you know?

Maintaining a healthy weight is important for overall health. In addition to BMI, healthcare providers use other measurements and factors - such as skinfold thickness, waist circumference, and diet - to assess a person’s health status.

Professional Tips & Best Practices

Realistic Targets: Aim for a gradual, sustainable weight reduction of 1-2 pounds per week to protect lean muscle mass.

Progress Milestones: Celebrate shifting down from severe obesity, to moderate, to healthy zones.

Holistic Health: Couple active workouts with nutritional changes for maximum lifestyle success.