Guides for new parents
The short answer first, with the source. Then the details.
How many diapers does a baby need?
Wet and dirty diapers by day for newborns, diapers per day by age, about how many a baby uses in year one, diaper sizes by weight, and when to call the pediatrician.
How much should a baby eat?
Formula and breast-milk amounts by age, how often newborns feed, the 2.5 oz per pound rule, the 32 oz daily ceiling, and signs your baby is getting enough.
What your pediatrician will ask at well-baby visits
The well-baby visit schedule (3–5 days to 2 years), the questions pediatricians ask about feeding, diapers, sleep and growth, the numbers to bring, and questions worth asking back.
How much should a baby sleep?
Total sleep by age (newborn to toddler), how many naps, typical wake windows, when longer night stretches usually happen, and the AAP safe-sleep basics.
What should you track for a newborn?
The few things worth logging in the first weeks — feeds, wet and dirty diapers, weight — what is optional, how long to keep tracking, and what to do if you started late.
Baby growth percentile calculator
WHO weight, length and head-circumference percentiles, 0–24 months.
Baby formula calculator
How many ounces a day and per bottle, from weight and age.
Monthly milestone photo ideas
Age cards, footprints, same-spot photos and more, with templates.
Start tracking free — tonight
No sign-up wall, no ads, free for both parents. Starting late? TallyTot fills in the early months from a few rough guesses.
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