⚠️ Medical Disclaimer: These tools are for educational purposes only and are not medical advice. Please consult your GP, child health nurse, or healthcare provider for any health concerns.
Free Tool

Baby Growth Percentile Tracker

Compare your baby's weight and height against WHO international growth standards. Covers 0 to 24 months with separate charts for boys and girls.

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Baby growth tracking in Australia happens through your Maternal and Child Health Nurse visits and your blue book (or equivalent state record). This tracker fills in between appointments. We use WHO growth standards which Australia adopted in 2009. Helps you and your MCHN identify trends and respond to concerns early.

📊 Baby Growth Percentile Tracker

WHO growth standards for boys and girls aged 0 to 24 months

Weight
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Height
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About this tool

This tracker uses World Health Organization (WHO) Child Growth Standards data. Percentiles compare your baby with other healthy babies of the same age and gender worldwide.

This is a screening tool only. Always consult your GP for accurate growth assessment and medical advice.

Step-by-Step Guide

How to use this tool

Use this at every paediatrician visit. Takes under 30 seconds to see your baby's growth percentile.

  1. 1
    Select your baby's gender

    WHO has separate standards for boys and girls. They grow at different rates.

  2. 2
    Enter age in completed months

    For 3 months and 20 days, enter 3. For under 1 month, enter 0.

  3. 3
    Enter weight in kilograms

    Weigh just before a feed. Enter to one decimal place (e.g., 7.2 kg).

  4. 4
    Enter height and click Calculate

    Babies under 2 are measured lying down. Your percentile appears instantly.

💡 Track the TREND not just one number

A baby consistently on the 25th percentile is perfectly healthy. Watch for sudden drops between visits.

⚠️ When to consult your paediatrician

If weight or height falls below the 3rd percentile or above the 97th, or there is a sudden significant drop, see your paediatrician.

FAQ

Frequently Asked Questions

If your baby is at the 60th percentile, they weigh more than 60% of babies their age. Healthy babies can be anywhere from the 3rd to the 97th percentile.
Not at all. Concern arises when a baby drops significantly from their established percentile, not just when they are at a lower percentile.
Use corrected age. Actual age minus weeks premature. If baby is 4 months but born 8 weeks early, enter 2 months. Continue correcting until 2 years old.
Small differences occur due to rounding. If the difference is more than 5-10 percentile points, check that you entered the same values.
Healthcare in Australia

How baby growth and percentile tracking care actually works in Australia

Australian pediatric care runs through a mixed public-private system. Medicare covers GP visits and public ED visits. Many families also have private health insurance for faster specialist access. Your first call for after hours fever or illness is typically Healthdirect on 1800 022 222. Free, 24/7 nurse line. The Maternal and Child Health Nurse system is one of the best in the world. Free and accessible. Royal Childrens Hospital Melbourne, Westmead in Sydney, Queensland Childrens, Perth Childrens. These are the specialty ED centres for serious cases. For rural and remote families, telehealth through 13Health in Queensland or HealthDirect federally is critical. Royal Flying Doctor Service covers the genuinely remote stuff.

📞 Emergency contacts in Australia

In Australia, call Healthdirect on 1800 022 222 for free 24/7 health advice. For emergencies, call 000. Maternal and Child Health Nurses (free service in most states) can also help during business hours. Your GP is your first point of contact for ongoing concerns. The Tresillian Parent Helpline (1300 272 736) also handles concerns about babies.

Context for Australian families

What Australian mums actually deal with

Aussie mums tend to be pragmatic about baby illness. Cultural default leans toward "she will be right." Combined with reasonable access to nurses and GPs, this generally works. The Maternal and Child Health Nurse system is a treasure of the Australian health system. Use it without hesitation. Telehealth normalised during COVID and stayed normalised, which is genuinely useful. The unique Aussie concerns are bushfire smoke season and extreme summer heat. Babies are more vulnerable to air quality than adults. Sun and heat exposure can cause apparent fever via overheating. Always check core temperature properly (rectal or under-arm thermometer), not just the forehead, especially in summer.

More FAQs for Australia

Australian-specific questions

The blue book (or equivalent in your state, e.g. Personal Health Record in some states) is the official Australian child health record. Your MCHN and GP record growth measurements at scheduled checks. This tracker complements your blue book by giving you in-between tracking. Bring both to MCHN visits.
Australian Indigenous Health Services use WHO growth standards but may also reference Aboriginal-specific growth data. NACCHO (National Aboriginal Community Controlled Health Organisation) supports community-controlled child health services. Track consistently and discuss any concerns with your Aboriginal Medical Service or MCHN.
MCHN scheduled visits in most states happen at 2 weeks, 4 weeks, 8 weeks, 4 months, 8 months, 12 months, 18 months, and 3-4 years. Weight. Plus length and head circumference are measured. The MCHN uses the blue book chart and looks for consistent tracking along percentile lines.
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