Pediatrics Calculators
Last updated: September 2026
Child Hydration Needs Calculator
Estimates your child's daily fluid intake in milliliters based on weight, age, activity level, climate, and health status.
Pediatric Fluid Maintenance Calculator
Calculates a child's daily maintenance fluid requirement using the Holliday-Segar method based on body weight.
Child Daily Calorie Needs Calculator
Estimates daily calorie needs for children and teens up to age 18 with the Institute of Medicine Estimated Energy Requirement (EER) equations, using age, sex, weight, height and activity level.
Child Growth Percentile Calculator
Compare your child's height with the CDC (ages 2–20) or WHO (birth to 5 years) growth references to see the height-for-age percentile for their sex.
Child Daily Nutrition Calculator
Calculates estimated daily calorie needs for children and teens up to 18 with the Institute of Medicine Estimated Energy Requirement (EER) equations, using weight, height, age, sex, and activity level.
Pediatric Medication Dosage Calculator
Calculates the correct medication dose for a child from their weight and the prescribed dose per kilogram.
Pediatric Fever Management Calculator
Checks whether a child's temperature calls for fever medicine, whether enough time has passed since the last dose, and what the next weight-based dose of acetaminophen or ibuprofen is.
Pediatric Fever Assessment Calculator
Scores fever severity in children by combining temperature, age, fever duration, and accompanying symptoms into a single risk index.
Child Daily Hydration Calculator
Estimates a child's daily fluid needs in milliliters based on weight, activity level, climate, and illness.
Child Growth Velocity Calculator
Calculates a child's annualized growth velocity in cm/year from two height measurements taken over a known interval.
Newborn Jaundice Risk Calculator
Gives safe next-step guidance for a newborn's bilirubin result based on age in hours, gestational age and risk factors.
Infant Feeding Volume Calculator
Estimates the recommended daily milk or formula volume for healthy term infants using the 150 mL/kg/day guideline.
Next Immunization Calculator
Shows the age at which a child's next routine vaccine visit is due on the CDC childhood schedule, from the age at their last vaccine visit.
Child Vaccination Schedule Calculator
Estimates the recommended age for a child's next vaccine dose based on the current age and the age at their last dose.
Pediatric Fluid Requirements Calculator
Calculates a child's daily fluid requirement in milliliters using the Holliday-Segar method, adjusted for activity level and clinical conditions like fever or dehydration.
Infant Feeding Schedule Calculator
Estimates how many millilitres of milk or formula a baby needs per feeding based on weight, age, feeding type, and growth pattern.
Child Sleep Requirements Calculator
Calculate how many hours your child should sleep and what bedtime to set, based on age, activity level, and school schedule.
Developmental Milestones Calculator
Scores a child's developmental progress across language, social, fine motor, and gross motor domains, adjusting for prematurity.
Child Sleep Needs Calculator
Calculates recommended nightly sleep duration and an ideal bedtime for children based on age, activity level, nap habits, and wake-up time.
Baby Feeding Schedule Calculator
Calculates the recommended ounces per feeding for formula-fed, breastfed, or mixed-fed babies based on weight, age, and number of daily feedings.
Pediatric BMI Calculator
Calculates BMI for children and teens aged 2–19 from weight and height.
Pediatric Body Surface Area Calculator
Estimates a child's body surface area (BSA) in m² using the Mosteller formula.
Pediatric BMI Percentile Calculator
Determines where a child's BMI falls on CDC growth charts for ages 2–20.
Infant Formula Feeding Calculator
Estimates how many ounces of formula a baby needs per feeding based on weight, age, and feeding frequency.
Preterm Baby Corrected Age Calculator
Calculate the corrected (adjusted) age of a premature baby by accounting for weeks born early.
Adolescent Sleep Requirements Calculator
Estimates the recommended nightly sleep duration for teenagers aged 12–18 based on age, activity level, stress, and screen time habits.
Pediatric Fluid Replacement Calculator
Estimates the hourly oral or IV fluid replacement rate for a dehydrated child based on weight, dehydration severity, ongoing losses, and the desired replacement timeframe.
Newborn Weight Loss Calculator
Calculates the percentage of birth weight a newborn has lost in the first days of life.
Child Developmental Milestones Calculator
Score your child's developmental progress across motor, language, and social-emotional domains relative to age-based milestones.
Pediatric Pain Assessment Calculator
Estimate a child's composite pain intensity by combining a self-report pain score, observable behavioral signs, and pain duration — adjusted for the child's age.
Infant Development Milestone Calculator
Generates a composite developmental score for infants by assessing motor, cognitive, and social skill levels relative to age, with a correction for premature birth.
Head Circumference Percentile Calculator
Compares a child's head circumference with the WHO Child Growth Standards for their age and sex (birth to 5 years) and returns the percentile.