Free Baby Tools & Guides
Free, no sign-up tools and honest buyer's guides to help you plan, size and shop for your baby — from a first due date to a full first-year wardrobe. Built by the Babbez editorial team.
Calculators & PlannersFree baby tools
Answer a couple of questions and get a clear, instant answer — no email required.
Enter age, weight or height and get the right clothing size in seconds.
Find my size → Size ConverterConvert baby clothing sizes across US, UK, EU and Australia.
Convert sizes → Wardrobe PlannerSee exactly how many of each item you actually need, by size.
Plan the wardrobe → Registry & Essentials ChecklistBuild a personalised baby registry and essentials checklist.
Build my checklist → First-Year Cost CalculatorEstimate the real cost of your baby's first year, category by category.
Estimate the cost → Due-Date CalculatorFind your estimated due date and what each week brings.
Get my due date → Baby Name GeneratorDiscover names by style, origin and meaning — thousands to explore.
Find names →Buyer's GuidesClothing & sizing guides
Plain-English guides that help you choose well — what to buy, how much, and why.
The complete chart from preemie to 4T, plus a size calculator and how many to buy.
Read the guide → Baby Fabrics, ComparedCotton, organic, bamboo, muslin and merino — what each fabric is best for.
Compare fabrics → Baby & Kids Size ChartA quick reference chart by age, height and weight — newborn to 7 years.
See the chart →Data & ReportsThe Babbez baby-names report
Original research, updated with the latest official figures.
America's most popular and fastest-rising names, from the official 2025 Social Security data — with the trends behind them.
Read the report → …then find your favoriteTake the trends into our name generator and explore names by style and meaning.
Open the generator →Ready to shop?Soft, thoughtfully made baby clothes
Everything above is free to use. When you're ready, browse the Babbez collection.
Babbez tools and guides are for general planning and information only. Sizing varies by brand and baby — always check the size details on each product. Babbez does not provide medical, health or safety advice. See our full medical disclaimer.
New: sizing by brand & care symbols
- Baby size charts by brand — 30+ brands compared (runs big or small)
- Laundry & care symbol decoder