Child growth curve
Enter sex, birth date, measurement date, height, weight, and head circumference to estimate child growth percentiles.
Modeled after the Health Promotion Administration child growth-curve fields. Ages 0-5 use a compact WHO-style reference; ages 5-7 use a continuity estimate. Results are for discussion, not diagnosis.
How to read a growth curve
A percentile is the child’s relative position among children of the same age and sex. Around the 50th percentile is near the median. Very low or high percentiles are not a diagnosis, but they are worth discussing with a qualified professional.
Search and use guide
Child growth curve
Estimate child growth percentiles from sex, birth date, measurement date, height, weight, and head circumference. privacy-first-browser-tooling
Who it helps
- A quick 0-7 child height, weight, and head-circumference percentile estimator with care-discussion notes.
- The tool computes age in days, interpolates sex-and-age reference values, and estimates z-score and percentile; ages 0-5 use a compact WHO-style reference and ages 5-7 use a continuity estimate.
- a boy born 2025-01-01 measured on 2026-01-01 at 75.7 cm, 9.6 kg, and 46.1 cm is near the median.
What you can enter
- a boy born 2025-01-01 measured on 2026-01-01 at 75.7 cm, 9.6 kg, and 46.1 cm is near the median.
- The tool computes age in days, interpolates sex-and-age reference values, and estimates z-score and percentile; ages 0-5
How to read results
The tool computes age in days, interpolates sex-and-age reference values, and estimates z-score and percentile; ages 0-5 use a compact WHO-style reference and ages 5-7 use a continuity estimate. privacy-first-browser-tooling
Data and privacy
GoGo Tools records analytics by tool slug only and does not include your input values. privacy-safe-analytics-only
Feedback
How can we improve this tool?
Send a suggestion or bug report for this tool.
FAQ
Is this a medical diagnosis?
No. Results are for care records and discussion with qualified professionals only.
Is data uploaded?
No. Inputs stay in your browser; analytics records only the tool slug.
Does below the 3rd or above the 97th percentile mean abnormal?
Not by itself. Interpret results with repeated measurements, family context, and clinician guidance.
What is the reference?
The workflow follows the Taiwan HPA Health99 child growth-curve fields; ages 0-5 use a compact WHO-style growth reference.