Free tools Use them right away, no sign-in needed
Use them right away, no sign-in needed
Free parenting calculators
From feeding amounts to growth percentiles, sleep times, and vaccine schedules. Use these tools, built on trustworthy public standards, for free. Every calculation runs in your browser, and the information you enter is never stored.
Feeding amount calculator
Calculate the recommended daily and per-feed amounts from your baby's weight and age.
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Growth percentile calculator
Check weight, height, and head-circumference percentiles using the WHO growth standards.
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Sleep time calculator
Get recommended daily sleep and nap times by age, plus an estimate of the next time to sleep.
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