Baby Clothes Size Chart

🧸 Buying as a Gift? Here’s What to Choose

Not sure whether to buy Newborn or 0–3 months? You're not alone — it's one of the most common questions gift-buyers ask.

The short answer: go for 0–3 months.

Here's why:

• Brand fit varies. Baby clothing sizes aren't standardised across brands — a "Newborn" from one label can fit very differently to another. At AdoraBaby, our sizing follows standard UK guidelines, but as a rule, babies grow into clothes faster than you'd expect.
• When you're unsure of the baby's size, 0–3 months gives the most useful window. Most full-term babies wear it from birth, and it lasts longer than the newborn size — so there's far less risk of gifting something already outgrown.
• Sizing up is always the safer gift. A slightly larger outfit can be grown into; one that's too small can't be worn at all.

Browse by age to find the perfect fit: Newborn – 3 Months | 3–6 Months | 6–12 Months

Or explore our Baby Gift Sets — beautifully presented and always the right choice.