Size Guide | Finding the right size for your baby

Diapers

Training Pants

Use our helpful size guide to find the right fit for your little one.

Size
lbs
kgs

N
< 9 lbs
< 4 kg

1
6 - 11 lbs
3 - 5 kg

2
9 - 18 lbs
4 - 8 kg

3
13 - 24 lbs
6 - 11 kg

4
22 - 33 lbs
10 - 15 kg

5
28 - 39 lbs
13 - 18 kg

6
33 - 44 lbs
15 - 20 kg

7
37+ lbs
17+ kg

*If the Millie Moon sizing guide is recommending two sizes, (based on the weight of your child) we would suggest choosing the smaller size option, as our diapers do run slightly larger. If you have any questions, our customer care team are here to help.

We would love to hear from you

If you would like to learn more about Millie Moon, need some support to choose the right diaper, or would like to send us product feedback, please get in touch.

Recommended Products

Sensitive Wipes

Researched and developed to deliver the best possible care for your baby, our nourishing and biodegradable 100% plant-based wipes are pH balanced with added natural extracts of aloe, avocado and marigold to help soothe and protect your little one’s skin.

Find out more

Find us at

Find your nearest store