Growth Dashboard
Results for a boy
| Source | Metric | Measurement | Percentile |
|---|---|---|---|
| Enter weight, length/height, and (optionally) head circumference to see percentile results. | |||
WHO
WHO Median Reference — Boys 0–24 mo
50th percentile values based on WHO growth standards for healthy, breastfed term infants.
| Age (mo) | Weight (kg) | Length (cm) | Head (cm) |
|---|---|---|---|
| 0 | 3.35 | 49.9 | 34.5 |
| 3 | 6.37 | 61.4 | 40.5 |
| 6 | 7.94 | 67.6 | 43.3 |
| 9 | 8.90 | 72.0 | 45.0 |
| 12 | 9.65 | 75.7 | 46.1 |
| 15 | 10.31 | 79.2 | 46.8 |
| 18 | 10.94 | 82.3 | 47.4 |
| 21 | 11.55 | 85.1 | 47.8 |
| 24 | 12.15 | 87.1 | 48.3 |
CDC
CDC Median Reference — Boys 2–20 yr
50th percentile values based on CDC 2000 growth charts for children and adolescents.
| Age (yr) | Weight (kg) | Stature (cm) |
|---|---|---|
| 2 | 12.67 | 86.5 |
| 4 | 16.23 | 102.2 |
| 6 | 20.68 | 115.4 |
| 8 | 25.64 | 127.9 |
| 10 | 31.94 | 138.6 |
| 12 | 40.47 | 149.1 |
| 14 | 51.00 | 163.8 |
| 16 | 60.92 | 173.5 |
| 18 | 67.20 | 176.2 |
| 20 | 70.60 | 176.8 |
How to use this dashboard
- Select your child's sex (Boy or Girl).
- Enter the date of birth and date of measurement, or toggle to "Enter age directly" and type the child's age in years and months.
- Enter weight and length (or height) in your preferred units (kg/lb, cm/in). Add head circumference if your child is under 3.
- Read the summary table at the top — each row shows the percentile from one WHO or CDC chart your child's age qualifies for, with the AAP-recommended chart highlighted.
- Scroll down to see the interactive percentile curves for each applicable chart, with your child plotted on the curve against the 3rd, 15th, 50th, 85th, and 97th percentile lines.
Frequently asked questions
How do I use the combined growth chart dashboard?
Select your child's sex, enter their birth date and measurement date (or toggle to enter age directly), then type in weight, length or height, and optionally head circumference. The summary table and percentile charts update instantly — you see every WHO and CDC chart that applies to your child's age on a single page, rather than having to visit a separate calculator for each metric.
Why don't WHO and CDC percentiles match for the same child?
WHO and CDC charts describe different reference populations. WHO curves model how healthy, primarily breastfed term infants grow under good nutrition and health conditions. CDC curves describe how American children actually grew across national surveys from the 1960s through the 1990s, across all feeding methods. A typical 6-to-12-month-old often lands at a lower percentile on CDC than WHO because the CDC reference population carried more weight on average at that age.
Which growth chart should I use — WHO or CDC?
For US children, the American Academy of Pediatrics recommends WHO growth charts through age 2 and CDC growth charts from age 2 onward. This dashboard marks the AAP-recommended row for your child's current age with a green AAP badge so you can see the clinically preferred reading at a glance while still showing all applicable charts for context.
What percentile is considered healthy for a child?
Any value between the 3rd and 97th percentile is within the normal range. A child steadily tracking at the 15th or 80th percentile at each well-child visit is growing well — the percentile number itself matters less than whether the child stays in roughly the same channel over time. Pediatricians typically look more closely when a child drops or rises across two major percentile bands between visits.
Does a single percentile reading tell me if my child is growing well?
No — trajectory matters more than any single number. Pediatricians watch for two patterns: channel tracking (staying near the same percentile across visits) and weight-for-length balance (whether weight-for-age and length-for-age sit at roughly similar percentiles). A large gap between the two, or an abrupt jump in channel, is what prompts a closer look — not the value of a single reading.
How is BMI calculated from the inputs I enter?
BMI is derived automatically as weight in kilograms divided by height in meters squared (kg/m²). You don't need a separate input — whenever both weight and height are present and the child is at least 2 years old, the dashboard computes BMI and plots it against CDC and WHO BMI-for-age percentile curves.
This calculator is an educational tool and is not a substitute for a pediatrician's evaluation. Bring any concerns to your child's clinician.
Related Calculators
- Weight-for-Age (WHO, 0-24 mo) — the single-metric WHO infant calculator
- Weight-for-Age (CDC, 2-20 yr) — the single-metric CDC older-child calculator
- BMI-for-Age (WHO, 5-19 yr) — BMI for school-age children and adolescents
- Weight-for-Length (WHO, 0-24 mo) — proportional-growth screening for infants
- Which chart should I use? — guide to WHO vs CDC selection
Related Sites
- Medical Equations — Clinical calculators for dosing and diagnostics
- RN Calc — Nursing dosage and IV calculators
- Z-Score Calculator — Convert z-scores to percentiles and probabilities
- AJ Design Software — 200+ engineering and science calculators
- Dollars Per Hour — Weekly paycheck calculator with overtime
- Temperature Tool — Temperature unit converter