Baby clothes size chart: which size fits which age?
Shopping for baby clothes is lovely – until you're standing there wondering whether you need a 56 or a 62. Babies grow incredibly fast in their first year, so picking the right size is trickier than it looks. In this guide you'll learn how European baby sizes work, find a clear size chart by age and height, and get practical tips for choosing the right size, including for gifts.
How do European baby sizes work?
Across most of Europe, baby sizes are based on your baby's height in centimetres. A size 62 fits a baby who is about 62 cm long. So the easiest way to find the right size is simple: measure your baby from the top of the head to the heel.
The age shown next to a size is only a guide. Some babies are 48 cm at birth, others 54 cm. That's why height is the most reliable measure.
Baby size chart by age
| EU size | Baby's height | Age (guide) | UK/US equivalent (approx.) |
|---|---|---|---|
| 44 | up to 44 cm | premature | Tiny baby / Preemie |
| 50 | 44 – 50 cm | newborn | Newborn |
| 56 | 50 – 56 cm | 0 – 2 months | 0 – 3 months |
| 62 | 56 – 62 cm | 2 – 4 months | 0 – 3 / 3 months |
| 68 | 62 – 68 cm | 4 – 6 months | 3 – 6 months |
| 74 | 68 – 74 cm | 6 – 9 months | 6 – 9 months |
| 80 | 74 – 80 cm | 9 – 12 months | 9 – 12 months |
| 86 | 80 – 86 cm | 12 – 18 months | 12 – 18 months |
| 92 | 86 – 92 cm | 18 – 24 months | 18 – 24 months |
| 98 | 92 – 98 cm | 2 – 3 years | 2T – 3T |
| 104 | 98 – 104 cm | 3 – 4 years | 3T – 4T |
Tip: is your baby right between two sizes? Go for the larger one. A slightly roomy romper will still fit for weeks; a snug one won't.
How to choose the right size
1. Measure your baby
Lay your baby flat and measure from the top of the head to the heel. That length is your most important reference.
2. Check the product's size chart
Every style fits a little differently. On our product pages you'll find the garment measurements, such as length and chest width. Lay a garment that fits well right now flat, measure it and compare.
Keep in mind: garment length is not the same as your baby's height, and a flat chest width is half the chest circumference.
3. Consider the type of clothing
- Bodysuits and rompers: length matters most. Too short will pull at the shoulders and crotch.
- Knitted cardigans and jumpers: can be a little roomier, so a layer fits underneath.
- Coats and outdoor suits: size up so they fit over thicker clothes.
- Baby shoes: go by foot length in centimetres, not age. Leave about half to one centimetre of room for the toes.
4. Think about the season
Buying ahead for a few months from now? Think about which season it will be when the size fits. A chunky knitted outfit in size 74 is perfect if your baby is 6 to 9 months old in winter – not so much in midsummer.
Which size should you choose for a new baby gift?
New parents often receive lots of clothes in sizes 50 and 56, which only fit for a few weeks. A smart choice:
- Size 62 or 68 for a gift that lasts longer.
- Mind the season: a baby born in autumn will wear size 68 in the middle of winter, so a warm knitted set is ideal.
- Pick something timeless, like a soft romper or a knitted cardigan in a neutral colour.
Browse our newborn collection or go straight to bodysuits and rompers.
How many clothes do you need per size?
Babies grow so quickly in the first months that it's best not to buy too much in the smallest sizes. A common guideline:
- Size 50 – 56: 5 to 7 bodysuits, 4 to 6 trousers or sleepsuits, 2 cardigans
- Size 62 – 68: a few more, as your baby wears these sizes for longer
- From size 74: depends on the season and how often you do laundry
Mix and match separates, like a bodysuit with trousers and a knitted cardigan, or choose a ready-made set for a complete outfit.
Frequently asked questions
What size does a newborn wear?
Most newborns wear EU size 50 or 56. If your baby is longer than 50 cm at birth, size 56 usually fits better.
Is size 56 the same as 0–3 months?
Roughly, yes. Size 56 fits babies of 50 to 56 cm, which usually means 0 to 2 months. Your baby's height is what matters most.
What's the difference between size 62 and 68?
Size 62 is for babies up to about 62 cm (2–4 months), size 68 for babies up to about 68 cm (4–6 months).
Should I size up?
If in doubt, yes – especially for coats, knitwear and gifts.
Can I return items if the size doesn't fit?
Yes. You have 14 days after delivery to withdraw from your purchase. See our Returns page for details.