Growth Percentile Calculator
Calculate pediatric growth percentiles for weight, height, and BMI using CDC 2000 and WHO Child Growth Standards LMS reference data.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Weight Percentile
30.4%ile
Height Percentile
37.3%ile
How to Use This Calculator
- Enter the child's Age in months (0–240 for birth to 20 years).
- Enter the current Weight in kg (use a calibrated scale; for infants, weigh without clothing).
- Enter Height/Length in cm — use recumbent length for children under 24 months and standing height for older children.
- Select Sex (1 = Male, 2 = Female) — growth charts differ significantly by sex.
- Review Weight Percentile, Height Percentile, BMI Percentile, and Weight Status (valid for children ≥ 2 years). Percentiles below the 5th or above the 95th warrant further clinical evaluation.
How the result changes with Weight
| Weight | Weight Percentile | Height Percentile |
|---|---|---|
| 15 | 89.4%ile | 37.3%ile |
| 53 | 100%ile | 37.3%ile |
| 98 | 100%ile | 37.3%ile |
| 135 | 100%ile | 37.3%ile |
What each input means
- Age
- Child's age in months (0-240 for birth to 20 years).
- Weight
- Current weight in kilograms.
- Height/Length
- Length (supine for <24mo) or standing height in centimeters.
- Sex
- 1 = Male, 2 = Female — growth charts differ by sex.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersAge = 24, Weight = 12, Height/Length = 86, Sex = 1 = 4 input(s) provided
- Calculate Weight PercentileWeight Percentile30.4 = 30.4
- Calculate Height PercentileHeight Percentile37.3 = 37.3
- Calculate BMI PercentileBMI Percentile32.2 = 32.2
- Calculate BMIBMI16.2 = 16.2
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