About WelcomeParenthood

The first year with a new baby is a blur of small, urgent questions. When is this baby actually due? How much milk should a bottle hold at this age? Why won’t the nap stick, and how long should they even be awake? What diaper size comes next, and how many will a month eat through? Is this weight normal for the age? And, quietly underneath all of it, what is this whole year going to cost? None of these are hard questions on their own — but working them out by hand, on no sleep, at 3am, is exactly when a parent least wants to do arithmetic.

WelcomeParenthood exists to take that arithmetic off your plate. Instead of long articles you have to read end to end, the site is built around a set of small, single-purpose calculators, each aimed at one real decision in the newborn and first-year stage. The Due Date Calculator estimates your due date from your last period or conception date and lays out the trimester milestones ahead. The Baby Feeding Amount Calculatorturns your baby’s age and weight into a sensible per-feed and per-day formula amount. The Baby Sleep Schedule Planner maps an age to the total sleep, nap count, and wake window most babies manage, so you can time the next nap. The Diaper Size & Quantity Calculator reads a weight into a likely size and estimates how many diapers a day and a month to stock. The Baby Growth Percentile Calculator places a weight or length on a WHO-style reference band, in plain English. And the First-Year Baby Cost Estimator adds the recurring monthly costs and one-time gear into a realistic year-one budget.

Beyond the calculators, the blog and learn section cover newborn care, feeding and sleep, growth and milestones, and getting ready for a baby, and the Museum of Infancy & Childhood is a browsable collection of the objects, customs, and milestones of early childhood, with every entry, image, and fact drawn from Wikipedia and Wikimedia Commons.

A few things worth stating plainly. WelcomeParenthood is an independent site, not affiliated with any hospital, pediatric practice, formula brand, or gear manufacturer. It is supported by advertising, which is how the tools stay free with no account required. Everything here is for information and planning only — a due date, a feeding amount, a sleep guide, a percentile band, a cost estimate — and none of it is medical advice or a substitute for your pediatrician, OB, or midwife. Babies differ enormously, and the people who know yours should always have the final word. If a tool or article looks wrong, or there’s a calculator you wish existed, the contact page is the place to say so.