Pediatric Weight Estimation (APLS)

Estimate pediatric weight by age using APLS formula. Age 1-5yr: weight = 2x(age+4)kg; age 6-12yr: weight = 3xage+7kg.

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Estimate pediatric weight by age using APLS formula. Age 1-5yr: weight = 2x(age+4)kg; age 6-12yr: weight = 3xage+7kg

Each component has a specific meaning:

  • APLS formula — The apls formula recorded for the scenario being assessed.

Note: Interpret the apls weight result against the thresholds and context described above.

How to Use

Enter the APLS formula for the scenario you are assessing. Estimate pediatric weight by age using APLS formula. Age 1-5yr: weight = 2x(age+4)kg; age 6-12yr: weight = 3xage+7kg. Use the apls weight result to inform your calculation.

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