Child Growth TrackerWatch them grow
The free child growth trackerthat plots your child's height, weight, BMI and head size on official WHO growth charts and shows their exact percentile in seconds.
Add your childFree forever · sign in to start
Growth summary
Weight for age
10.5kgat 14 months
55th pct+0.6 kg since last
Height for age
78.5cmat 14 months
60th pct+2.1 cm
Your child's growth story
Every height, weight, BMI and head-size plotted on WHO percentile bands — with trend, growth velocity and percentile movement explained in plain language.
Backed by WHO science
Exact LMS percentiles and z-scores from the official WHO Child Growth Standards (0–19 years) — the same charts paediatricians use worldwide.
The smart way to follow your child's growth
Our child growth tracker turns every height and weight you log into the exact WHO percentile and z-score, so you can see how your child compares to healthy growth standards and spot any concern — like a percentile drifting downward over time — early, and discuss it with your paediatrician.
How it works
1
Add your child
Enter name, sex and date of birth — that's all we need.
2
Log measurements
Add height, weight, BMI or head size from any date.
3
See the analysis
Get the WHO percentile, chart and trend instantly.
What you can track
Weight-for-age
Catch underweight or rapid weight gain early with the exact weight percentile and z-score.
Height / length-for-age
Follow linear growth and screen for stunting against WHO height-for-age charts.
BMI-for-age
Track body proportion and flag overweight or thinness with BMI-for-age percentiles.
Head circumference
Monitor head growth (0–2 years) on WHO head-circumference-for-age charts.
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Frequently asked questions
Which growth standards do you use?
WHO Child Growth Standards (2006) for ages 0–5 years and the WHO 2007 growth reference for ages 5–19 years — the standards used by paediatricians worldwide. We compute the exact LMS z-score and percentile for each measurement.
Is the Child Growth Tracker free?
Yes — it's free. Sign in with a free account to add your child and log measurements; your data is then saved securely and available on any device.
What can I track?
Weight-for-age, height/length-for-age, BMI-for-age and head circumference-for-age — each plotted on its WHO percentile chart with an interpretation and trend over time.
How often should I measure my child?
A practical cadence follows well-baby visits: at birth, 6 weeks, then monthly to 6 months, every two months to 1 year, quarterly in the second year, and every 6–12 months after that. The tracker shows when the next measurement is due.
What does my child's percentile mean?
A percentile compares your child to a reference population of the same age and sex — a weight in the 60th percentile means about 60% of children weigh less. Anywhere from the 3rd to 97th percentile is generally considered normal; a steady trajectory matters more than a single number.
Is this medical advice?
No. The tracker is for information and monitoring only. Percentiles help you and your doctor follow your child's growth — always discuss any concern with your paediatrician.