Newborn & Baby Calculators
Free, practical tools for pregnancy and the first year — count down to your due date, get feeding amounts right, plan naps, size diapers, track growth, and budget the year ahead. Educational tools for planning and everyday care, not medical advice.
Due Date Calculator
Estimate your due date from your last menstrual period or conception date, see how many weeks along you are today, and get the trimester milestones that mark each stage of pregnancy
Baby Feeding Amount Calculator
Estimate how much milk a formula-fed baby needs from their age and weight — millilitres and ounces per feed, feeds per day, and the daily total, capped to an age-appropriate intake
Baby Sleep Schedule Planner
Turn your baby's age into a realistic day — total sleep in 24 hours, the typical number of naps, and the age-appropriate wake window between sleeps to help you time the next nap
Diaper Size & Quantity Calculator
Find the likely diaper size from your baby's weight, plus how many diapers a day and a month to expect at their age — useful for stocking up and comparing box prices
Baby Growth Percentile Calculator
See where your baby's weight or length falls on a WHO-style reference band for their age in months — a plain-English percentile to talk through at your next pediatric visit
First-Year Baby Cost Estimator
Add up the real first-year budget — diapers, formula or feeding, clothing, gear, childcare, and health — to see the yearly total and what it works out to each month