Kids & Pregnancy
Water intake for children, babies, teenagers, pregnancy, and breastfeeding mothers.
Most popular in Kids & Pregnancy
Child Water Intake (1–13 yrs)
Daily fluid needs for children using the clinical Holliday–Segar rule, adjusted for climate.
Open calculatorPregnancy Water Intake
Trimester-based daily water target supporting healthy pregnancy hydration.
Open calculatorBreastfeeding Water Intake
Daily fluid target for lactating mothers, scaled to feeding pattern.
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Teen Water Intake (14–18)
Daily water target for teenagers based on EFSA reference values, adjusted for weight and sport activity.
OpenBaby Formula Water Calculator
Daily formula amount and per-feed volume for infants by weight and age.
OpenPostpartum Water Intake
Recovery hydration for new mothers — accounts for breastfeeding and C-section healing.
OpenToddler Water Intake (1–3 yr)
Daily fluid and plain-water target for toddlers using Holliday–Segar guidelines.
OpenNewborn Fluid Needs (0-3 mo)
Fluid requirements for newborns from feeds.
OpenInfant Water Intake (3-12 mo)
Fluid needs from milk plus safe water introduction.
OpenPreschooler Water Intake (3-5 yr)
Daily water target for preschool-age children.
OpenTwin Pregnancy Water Intake
Higher fluid target for a twin pregnancy.
OpenFirst Trimester Water Intake
Nausea-friendly hydration schedule for weeks 1-13.
OpenSecond Trimester Water Intake
Amniotic fluid support for weeks 14-27.
OpenThird Trimester Water Intake
Weeks 28+ hydration to prevent preterm contractions.
OpenNewborn Fluid Guide
0–6 month fluid guidance.
OpenSimple, accurate, personalized
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A research-backed daily target plus an hourly schedule.
Learn the science behind kids & pregnancy
Read our in-depth guides for research-backed context on every calculator here.