What Size is 70 in Baby Clothes? The Ultimate Parent’s Guide to European Sizing
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Wondering what size is 70 in baby clothes for your little explorer?
Don’t let the metric system stall the fun. We decode the height secret and reveal how our favorite boutique brands actually fit so you can shop with confidence.
Have you ever opened a beautiful gift for your baby only to be left scratching your head at the tag? There is nothing more disappointing than realizing a high-quality heirloom piece might go unworn because the sizing feels like a secret code you can’t crack.
If you have just unboxed a stunning garment and found a "70" where you expected to see "6-12 months," you are not alone. This numerical system is the standard for many premium European and artisan brands that prioritize a precise, height-based fit over generic age ranges to ensure your little explorer has the perfect amount of room to move and grow.
For parents wondering what size is 70 in baby clothes, size 70 is based on a child's height rather than their age. It is designed for babies measuring up to 70 centimeters (approximately 27.5 inches) tall. In the US market, this typically aligns with the 6 to 12 month size range.
Why Centimeters Beat Months Every Time
At Little-ish, we believe in the enduring power of physical, creative play. To play freely, a child needs clothes that actually fit. The European system uses the child's height in centimeters because, as every parent knows, two six-month-olds can be vastly different sizes.
By focusing on height, these brands offer handmade children’s clothing and heirloom-quality children’s products that respect the child's natural growth. This metric magic allows for better movement during hands-on exploration like building, crafting, and imagining.
The Essential European Sizing & Growth Chart

To help you navigate these unique finds, we have compiled this reference chart. Please remember that these are maximum height recommendations. If your child is at the top of a range, we always suggest sizing up to ensure the piece can be cherished and passed down to the next generation.
|
European Size (Height in cm) |
Approximate US Age |
Height in Inches |
|
50 |
Newborn |
Up to 20" |
|
56 |
0 to 3 Months |
20" to 22" |
|
62 |
3 to 6 Months |
22" to 24.5" |
|
68 |
6 to 9 Months |
24.5" to 27" |
|
70 |
6 to 12 Months |
27.5 |
|
80 |
12 to 18 Months |
27" to 31.5" |
|
90 |
18 to 24 Months (2T) |
31.5" to 35.5" |
|
100 |
3 Years |
35.5" to 39" |
|
110 |
4 to 5 Years |
39" to 43" |
|
120 |
6 to 7 Years |
43" to 47" |
|
130 |
8 Years |
47" to 51" |
|
140 |
9 to 10 Years |
51" to 55" |
While the growth chart above focuses on height for precision, we know many parents prefer using weight as a secondary guide to ensure a comfortable fit. To help you cross-reference, here are the weight-based equivalents for the most common transition sizes. If you’re searching for:
- What size is 80 in baby clothes? This size fits toddlers approximately 12 to 18 months old, weighing between 21 and 24 lbs.
- What size is 2t in baby clothes? In the metric system, this is comparable to a Size 90, typically fitting children weighing between 24 and 29 lbs.
- What size is 120 in children’s clothes? This size is roughly a US size 6 or 7, generally designed for children weighing between 45 and 55 lbs.
- What size is 130 in children’s clothes? This size typically fits an 8-year-old child, usually correlating to a weight of 55 to 65 lbs.
- What size is 140 in children’s clothes? While it exceeds the infant range, this size is for older children (roughly 9 to 10 years old) fitting a weight range of 65 to 75 lbs.
The Little-ish Brand-by-Brand Sizing Guide

Because we champion small-batch makers and family-owned businesses, every brand has its own personality and fit. Here is how our favorite brands handle the Size 70 range and beyond.
|
Brand |
Typical Sizing for the "70" Range |
The Little-ish Fit Tip |
|
1+ IN THE FAMILY |
6M (68cm) or 9M (74cm) |
Spanish sizing: these beautiful basics tend to run slim. |
|
AO76 |
6M or 12M |
Belgian style: very true to size with a classic, tailored feel. |
|
BOBO CHOSES |
6-12M (fits up to 74cm) |
Effortlessly cool: expect a relaxed, boxy fit for easy play. |
|
EMILE ET IDA |
6M or 12M |
French elegance: these often run a bit small and narrow. |
|
HELLO SIMONE |
12M (74cm) |
Chic and playful: if your little one is tall, size up. |
|
KONGES SLOJD |
Size 74 |
Danish design: known for being generous and very comfortable. |
|
MARMAR COPENHAGEN |
Size 74 (9 Months) |
Famous for soft ribs: slim silhouettes but very stretchy. |
|
MINI RODINI |
68/74 (Dual Sizing) |
Swedish quality: very generous fit designed to last. |
|
MIOUNET |
6M or 12M |
Artistic and bold: fits true to the height-based metric. |
|
MISHA AND PUFF |
6-12M |
Hand-knitted luxury: these have a wonderful, natural stretch. |
|
MY LITTLE COZMO |
6M or 12M |
Soft and organic: a comfortable, easy-wear silhouette. |
|
THE CAMPAMENTO |
12M (74cm) |
Spanish flair: often boxy and designed for movement. |
Dressing for the Moment: Seasons, Celebrations, & Growth
At Little-ish, we understand the rhythm of family life, from playdates at home to birthday parties and afternoons at the pool. Our collection fits seamlessly into every moment:
- Event Ready: For special occasions like a first birthday or a family wedding, choose heirloom-quality children’s products with handmade details like crocheted collars or hand-embroidery.
- Active Play: For summer camps or playground adventures, look for relaxed silhouettes in organic cotton that allow for total freedom of movement.
- Seasonal Planning: If you’re shopping our seasonal sales for the next year, use our growth chart to anticipate your child's needs. If they are a Size 70 now, they will likely be ready for a Size 80 or Size 90 by the next time that season rolls around.
The Art of the Thoughtful Gift

Choosing a gift for a new arrival is an act of self-expression. Discerning gift-givers look for unique, memorable pieces that reflect a high level of care and a personal touch:
- Memories that Last: The best gifts do more than serve a fleeting moment; they evoke nostalgia years later. Selecting heirloom-quality items ensures they are durable enough to be passed down through generations.
- Boutique Discovery: When you step away from mass-produced items found in retail stores, you provide something truly special. Unique finds from small-batch makers offer a level of exclusivity that stands out.
- Perfect for Every Occasion: Whether it is a boutique baby shower gift or a stylish treat for a grandchild, artisan releases ensure your gift is as individual and full of character as the child receiving it.
Final Thoughts: Quality Over Quick-Fixes
At Little-ish, our mission is to offer more than just garments: we offer pieces that are made to be lived in and loved. We bring quality and style together through elevated children’s apparel designed for movement and discovery. Metric sizing might seem a bit different at first, but it is a clever way to ensure your child stays comfortable while they explore the world.