Calculators for caring for your child
27 tools matched to this goal.
Breast Milk Storage Time Calculator
How long expressed breast milk stays safe in different conditions.
Child Adult Height Predictor
Mid-parental height estimate for your child.
Children’s Acetaminophen Dose Calculator
Weight-based paracetamol dose for fever or pain.
Children’s Ibuprofen Dose Calculator
Weight-based ibuprofen dose for children over 6 months.
Baby Formula Feeding Calculator
How much milk your baby needs each day.
Pediatric Maintenance Fluids Calculator
Daily fluid needs by weight (Holliday-Segar).
Child Calorie Needs Calculator
Daily energy needs for ages 3–18.
Child Sleep Needs Calculator
Recommended sleep for your child’s age.
Kids Screen Time Calculator
Compare weekly screen time with age guidelines.
Baby Corrected Age Calculator
Adjusted age for babies born early.
Kids Water Intake Calculator
Daily fluid needs for children and teens.
Newborn Weight Change Calculator
Check how much a newborn has lost or regained since birth.
Infant Weight Gain Rate Calculator
Weekly weight gain between two weigh-ins for a baby.
Apgar Score Calculator
Score a newborn’s condition at 1 and 5 minutes after birth.
Child Iron Needs Calculator
Recommended daily iron for children and teens by age and sex.
Child Calcium Needs Calculator
Recommended daily calcium for infants, children and teens.
Child Vitamin D Needs Calculator
Recommended daily vitamin D for infants and children.
Child Caffeine Limit Calculator
Compare a child’s caffeine intake with a commonly cited limit of 2.5 mg per kg per day.
Toddler Milk Intake Checker
Check daily cow’s milk against the 480 ml (16 oz) guideline for toddlers.
Child Growth Velocity Calculator
Height gained per year between two measurements.
Mid-Parental Height Calculator
Predict a child’s adult height from both parents’ heights.
Child Resting Heart Rate Calculator
Compare a child’s resting heart rate with typical ranges for their age.
Infant Feeds per Day Guide
Typical number of feeds in 24 hours for a baby’s age.
Child Protein Needs Calculator
Recommended daily protein for children and teens.
Child Zinc Needs Calculator
Recommended daily zinc for children and teens by age and sex.
Kids Daily Activity Check
Compare a child’s daily active minutes with the 60-minute guideline for ages 6–17.
Body Temperature & Fever Checker
Convert °C and °F and see if it counts as a fever.
Other goals
- Lose weight
- Build muscle
- Eat better
- Get fitter
- Protect my heart
- Manage blood sugar
- Pregnancy & fertility
- Care for my child
- Sleep better
- Mental wellbeing
- Cut back on drink, smoke & caffeine
- Understand my lab results
Related guides
Predicting Your Child’s Adult Height
The mid-parental method and its limits.
Pregnancy & FamilySafe Medicine Dosing for Children
Dose by weight, use the right measuring device and know when to call a doctor.
Pregnancy & FamilyHow Much Should a Baby Eat?
Typical feeding volumes and the cues that matter more than numbers.