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Free baby tools and calculators
The questions parents look up most — from "when is the baby due" to "what does a day with a six-month-old look like" — answered in a few seconds. Every number here comes from published guidance and links back to its source, so you can check it yourself — or show it to someone who asks.
Wake window calculator
How long should my baby be awake between naps?
How long your baby can comfortably stay awake, and when the next nap is likely to land. Free wake window chart, newborn to 24 months.
Feeding amount calculator
How much milk does my baby need per day?
How much milk your baby needs, on the Australian published ml/kg bands — with breastfeeding and formula modes, and a feeding chart by age.
Wet nappy guide by age
How many wet nappies should my baby have a day?
The wet and dirty nappy counts Australian health services publish for each age, day by day through the first week, plus the signs they say to get advice about.
Baby age calculator
How old is my baby in weeks and months?
Convert a date of birth into weeks, months and days the way health checks count it, including corrected age for babies born preterm.
Due date calculator
When is my baby due?
Estimate your due date from your last period or conception date using the standard 40-week method, and see how many weeks pregnant you are today.
Weeks pregnant calculator
How many weeks pregnant am I?
Enter your due date to see how many weeks and days pregnant you are, how long is left, and what is developing this week. Remembers your date for next time.
Baby name generator
What are the most popular baby names in Australia?
Explore 1,300+ names with origins and meanings, shuffle ideas by sex, style and first letter, and heart favourites into a shortlist you can share by link.
Growth percentile chart
What do baby growth percentiles mean?
Plot a weight or length on the WHO charts Australian child health checks use, and read what a percentile means. Free, no sign-up, no formula company behind it.
Hospital bag checklist
What should I pack in my hospital bag?
Build a hospital bag list for labour, the birth, your baby and your support partner, drawn from Australian and NHS maternity guidance. Tick it off as you pack.
Feed & sleep rhythm templates
What routine should my baby be on?
Example feeding and sleep rhythms for each age, built from published wake windows and feed frequencies, shifted to your baby's own wake time. Free, no sign-up.
Why we give these away for free
These are the questions new parents look up most, and none of them should need an app install at 3 am. So they sit here in the open — free, no sign-up, every number attributed to the health service that published it. How those numbers are chosen, and what a tool here will never do with them, is written down in our editorial policy.
BubSync itself is a shared record. It stores and summarises the feeds, sleep, nappies and other care information your family enters, and shows the history and totals to everyone looking after your baby. It does not assess your baby's health, nutrition or hydration.
See how BubSync works