Baby Growth Tracker

What is Baby Growth Tracker?

The Baby Growth Tracker lets you record and monitor your baby's weight, height, and head circumference over time. This free tool helps parents track developmental milestones — all data stays private on your device.

Each entry can capture weight, length, and head circumference, plus a date. The chart then plots your baby's points against the WHO 3rd–97th percentile bands for boys, girls, or a neutral reference, so you can see at a glance where the trend sits. Twelve developmental milestones (first smile, rolls over, first word, first steps, and more) come with the typical age range. Switch between metric (kg/cm) and imperial (lb/in), export the full log as CSV for the pediatrician, and everything stays on this device.

How to use

1. Enter your baby's measurements including weight and height
2. Add the date for each measurement entry
3. Watch the growth chart fill in over time and compare against WHO percentile bands

When to use

• Recording each well-baby visit's weight and length to compare against past entries.
• Sharing a clean growth log with grandparents or a partner who handles a different shift.
• Preparing a printable CSV for the next pediatric appointment instead of digging through chat messages.

Result

Track your 6-month-old's weight at 7.5 kg and height at 67 cm to monitor healthy growth.

FAQ

How accurate are the WHO percentile bands?

The bands come from the WHO Child Growth Standards (2006), the same reference most pediatricians use, but our chart interpolates monthly checkpoints and is meant as a quick visual cue, not a diagnosis. A measurement near the 50th line is on the median; one near the 3rd or 97th line is unusual but not automatically a problem. If anything looks off, bring the exported CSV to your pediatrician for a proper read.

The milestone ages don't match my baby. Is something wrong?

Each milestone shows a typical range, not a deadline. A baby who walks at 9 months and another who walks at 15 are both within normal variation. Use the ranges as a rough guide, and raise specific concerns with your pediatrician at the next visit.

Can I track twins or two children at the same time?

The tracker keeps one baby's data on this device. To follow a second child, switch to a private window or use a separate device for them. Export each child's log as CSV before switching so the records don't get mixed up.

What happens to my data if I clear site storage?

Clearing this site's storage wipes the tracker, because entries live locally on this device. Export the CSV regularly (after each measurement is a good habit) so a stored copy survives a storage reset, a phone reset, or switching to a new computer.

Why is metric weight in kilograms but my hospital reports in grams?

Most growth tracking after week one is in kilograms because daily gram-level changes get noisy. Convert grams to kilograms by dividing by 1000 (4250 g = 4.25 kg) before entering. Newborn weights below 1 kg can be entered as decimals such as 0.85.

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