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Free tools for the newborn days
Quick answers to the questions you have at 3am: how much should my baby eat, how many wet diapers is normal, which side was last. Numbers follow AAP, CDC and NHS guidance, in oz and ml.
Baby feeding calculator
How much formula or breast milk your baby needs per feed and per day, by age and weight, in oz and ml side by side.
Open the toolNewborn feeding schedule maker
Enter your baby's age and first feed time to get a printable day of suggested feed times, with interval guidance by age.
Open the toolWet diaper checker
Is your newborn having enough wet and dirty diapers? Check today's count against day-by-day guidance, plus red flags.
Open the toolBreastfeeding timer
A free left and right breastfeeding timer that remembers the last side, keeps time in the background and saves your history.
Open the toolml to oz converter
Convert baby bottle amounts between milliliters and ounces instantly, with a table of common bottle sizes.
Open the toolBaby age calculator
Your baby's age in days, weeks and months, corrected age for preemies, and the feeding stage they're in now.
Open the toolPrintable feeding log
A free printable 24-hour baby feeding and diaper log sheet for Letter or A4, ready for the fridge or the diaper bag.
Open the toolDiaper calculator
How many diapers your baby will use in the first year, by size, and what they'll cost at your price per diaper.
Open the tool
Last reviewed: November 2026. Feedoo Baby shares general information, not medical advice. Every baby is different. If you're worried about feeding, weight gain, diapers or your baby's health, call your pediatrician, midwife or health visitor.
When you're ready to stop doing the math
Feedoo Baby logs feeds and diapers in two taps, shows when the next feed is due, and shares one log with everyone caring for your baby. Try it free for 14 days, no credit card needed.