Size 4 Diapers Size Guide
Weight bracket: 9-14kg / 20-31lbs
| Size | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| 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 | 17+ kgs 37+ lbs |
| Approx. age | up to 2 months | 2-6 months | 3-9 months | 6-18 months | 18+ months | 24+ months | 30+ months |
| Diapers per pack | 38 | 38 | 32 | 32 | 28 | 24 | 22 |
| Average diapers per day | 8-10 | 8 | 6 | 6 | 5 | 5 | 3 |
What age are size 4 diapers for?
Our size 4 diapers are designed for babies weighing between 9-14kg (20-31lbs), which is typically from around 6 months to 18 months old. Of course, every baby is different, and some may need size 4 diapers a little sooner, while others might stay in them for longer.
If you're looking for the best diaper that’s gentle on your little one’s skin and planet-conscious, our hypoallergenic diapers are a brilliant choice. With plant-based materials on baby's skin, they’re hypoallergenic, and designed to give up to 12 hours of leak protection - making them perfect for keeping your baby comfy and dry as they grow and begin to explore the world.
How do you know when to go to size 4 diapers?
If you’re wondering whether it’s time to move up to size 4 diapers, there are a few signs that your baby’s size 3 diapers may be getting too small. You might start to notice red marks around the waist or thighs, or your baby might be leaking more frequently - especially overnight, if they’re starting to sleep for longer stretches!
Switching to a bigger size can help your baby stay comfortable and dry, especially as they start moving more and becoming more active. Kit & Kin size 4 diapers will give you a flexible, secure fit, whilst making sure your little one has plenty of freedom to roll, crawl, and explore. For more information on finding the fit that’s right for your baby, have a read of our ultimate diaper size guide.