BMI & Healthy Weight Calculator

BMI & Healthy Weight Calculator

The BMI & Healthy Weight Calculator supports BMI calculations for adults and children. Enter age, gender, height, and weight to quickly calculate BMI, BMI classification, and reference values such as standard weight, ideal weight, and healthy weight range.

Adult BMI Calculation

Adult BMI is commonly calculated from height and weight to provide a quick indication of whether body weight falls within a commonly used healthy reference range. The tool calculates the BMI value and displays the corresponding classification.

Child BMI Calculation

Children and adolescents are still growing and developing, so BMI should not simply be interpreted using adult standards. This tool supports entering a child’s age, gender, height, and weight to calculate BMI and provide relevant health references.

Which Metrics Can Be Calculated?

• BMI: Calculates body mass index from height and weight.
• BMI classification: Displays the classification according to applicable BMI reference standards.
• Standard weight: Provides a commonly used standard weight calculation for reference.
• Ideal weight: Provides an ideal weight reference based on height and other input information.
• Healthy weight range: Helps identify a reference weight range suitable for the current height.

What Is the Difference Between Adult and Child BMI?

Adult BMI can generally be interpreted using the BMI value and adult classification standards, while children and adolescents have BMI values that change with age and gender. Child BMI should therefore be assessed together with age, gender, and growth and development.

How Is BMI Calculated?

The basic BMI formula is: BMI = weight (kg) ÷ height (m)². For example, for a height of 170 cm and a weight of 65 kg, first convert the height to 1.70 m and then calculate BMI using the formula.

How to Use the BMI Calculator?

1. Select or enter gender.
2. Enter age.
3. Enter height in centimeters (cm).
4. Enter weight in kilograms (kg).
5. Click calculate to view BMI and related healthy weight metrics.

BMI Results Are for Health Reference Only

BMI is a simple weight-management indicator and cannot fully reflect body fat percentage, muscle mass, body composition, or individual health status. For children and adolescents, BMI should also be considered together with age, gender, and growth and development. Results are intended for health management reference only. If you have health concerns, consult a qualified medical professional.