Skip to Main Content
Preemie Size Chart: Clothing & Diapers

Preemie Size Chart: Clothing & Diapers

In this article, we provide size charts for preemie clothing and diapers, along with important information on where to find them and why sizing matters.

Premature infants have unique needs, and properly fitted garments and diapers play a vital role in their comfort and overall well-being. Let's explore the size charts for preemie clothing and diapers, along with important considerations for your little one.

Clothing Size Chart for Premature Babies

This chart is a guide based on popular brands sizes and baby weights, we recommend that you check each brand individually for the best fit.

Baby Clothing

Weight (lbs / kg)

Length (in. / cm)

Preemie up to 6 lbs / up to 2.7 kg up to 17 in. / up to 43 cm
Newborn 6-9 lbs / 2.7-4.1 kg up to 21.5 in. / up to 55 cm
0-3 months (3m) 9-12.5 lbs / 4.1 - 5.7 kg 21.5 - 24 in. / 55 - 61 cm
3-6 months (6m) 12.5 - 17 lbs / 5.7 - 7.7 kg 24 - 26.5 in. / 61 - 67 cm
6-9 months (9m) 17 - 21 lbs / 7.7 - 9.5 kg up to 28.5 in. / up to 72 cm
12 months 121 to 25 lbs / 9.5 -11.3 kg 28.5 to 30.5 in. / 72 to 78 cm
18 months 25- 28 lbs / 11.3 - 12.7 kg 30.5 to 32.5 in. / 78 - 83 cm
24 months 128 - 30 lbs / 12.7 - 13.6 kg 32.5 to 34 in. / 83 - 86 cm

Where can I find preemie clothing?

Finding preemie-sized clothing may require a bit more effort than shopping for standard sizes. Many specialized baby stores, online retailers, and even some larger retail chains offer a selection of preemie clothing. You can also inquire at your hospital or NICU, as they may have resources or recommendations for where to find appropriate clothing for your premature baby.

Why is premature clothing sizing so important?

Properly sized clothing is crucial for premature babies as it ensures a comfortable fit that supports their delicate bodies. Preemie clothing is designed with consideration for their smaller size, reduced muscle tone, and sensitivity.

Diaper Size Chart for Premature Babies

This chart is a guide based on popular brands sizes and baby weights, we recommend that you check each brand individually for the best fit.

Diaper Size

Baby Weight (in pounds)

Size P1 diapers less than 6
Size N diapers less than 10
Size 1 diapers 8-14
Size 2 diapers 12-18
Size 3 diapers 16-28
Size 4 diapers 22-37
Size 5 diapers 27+
Size 6 diapers 35+
Size 7 diapers 41+


Where can I find premature diapers?

Premature-sized diapers can be found at many retailers, including baby supply stores, online retailers, and some pharmacies. Additionally, your hospital or NICU may provide you with premature-sized diapers during your baby's stay or offer guidance on where to find them.

Why are preemie-sized diapers so important?

Using diapers specifically designed for premature babies is essential for their comfort and health. These diapers are designed to fit their smaller bodies snugly, preventing leaks and ensuring proper absorption. Premature-sized diapers also help protect their sensitive skin and reduce the risk of irritation.

What is a normal amount of diapers for a premature baby?

The number of diapers your premature baby will go through can vary. Generally, newborns, including premature babies, may require around 8-12 diaper changes per day. However, every baby is different, and factors such as feeding frequency and individual elimination patterns can influence the number of diapers needed.

When can my baby transition away from premature-sized clothing and diapers?

The transition from premature-sized clothing and diapers to larger sizes depends on your baby's growth and development. As your baby gains weight and reaches certain developmental milestones, you can gradually transition to larger sizes. Always consult with your pediatrician or healthcare provider for guidance on when it is appropriate to make this transition.

Shop with Confidence for Your Preemie

Choosing the right clothing and diapers for your premature baby is essential for their comfort and well-being, and so is nutrition! Enfamil offers a range of products, including Enfamil EnfaCare, specifically designed to support the nutritional needs of premature infants. By joining Enfamil Family Beginnings®, you gain access to expert advice, valuable resources, and exclusive offers tailored to your baby's needs.

Take the next step in supporting your premature baby's growth and development. Sign up for Enfamil Family Beginnings® today!

All information on Enfamil, including but not limited to information about health, medical conditions, and nutrition, is intended for your general knowledge and is not a substitute for a healthcare professional's medical identification, advice, or management for specific medical conditions. You should seek medical care and consult your doctor or pediatrician for any specific health or nutrition issues. Never disregard professional medical advice or delay seeking medical treatment, care, or help because of information you have read on Enfamil.