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Size 2 Diapers Sizing Guide

Size 2 diapers weight bracket: 4-8kg / 9-18lbs

Diapers size guide
Size 1 2 3 4 5 6
Weight 2-5 kgs
4-11 lbs
4-8 kgs
9-18 lbs
6-10 kgs
13-22 lbs
9-14 kgs
20-31 lbs
11+ kgs
24+ lbs
14+ kgs
31+ lbs
Approx. age

up to 2


per day
8-10 8 6 6 5 5

You probably don’t have a cute milestone card for this moment but it’s a big one! Baby’s first diaper size up! You might now have had some early smiles (or is that just air?!) and baby will be growing a little more active each day. If you still have lots of questions regarding sizing, you are not alone! ‘When to start using size 2 diapers?’ and ‘How big are size 2 diapers?’ are only two of the things parents at this stage tend to ask us. 

So let’s clear this up once and for all! How long do size 2 diapers last? As a rough guide, most babies fit into size 2 between the ages of 2 and 6 months, with some progressing into size 3 as early as 3 months old. In terms of how many size 2 diapers you need, you can expect your little one will go through approximately 8 diapers per day. For more information on all things diaper sizing, age and quantity, have a look at our Ultimate Diaper Size & Fit Guide.

Kit & Kin size 2 diapers come in our adorable mouse and panda designs. With baby’s eyes now able to follow moving objects, incorporating our animals into your changing routine is a fun way of interacting at this age.

Keep in mind that our size 2 diaper size guide should be used as just that, a guide. All babies are different so to help you decide when to move up from size 1 or change to size 3 diapers, we have put together a handy five point checklist  for you. Spoiler alert: the bigger the size, the more absorbent the diaper.

We’ve done the hard work for you, and have spent years creating the most comfortable, sustainable and stylish diaper on the market. Our ultra slimline design has won 26 industry awards including Most Ethical Brand,  so you can rest assured you’ve made the right choice for your little one and our planet. 

Buy our size 2 diapers