How to Find the Right Nappy Size for Your Baby (and Avoid Leaks & Poosplosions!)
One of the biggest challenges for new parents? Getting the right nappy size! Too small, and you’ll be dealing with leaks and red marks. Too big, and you might end up with a dreaded "poosplosion." 😱
So how do you make sure your baby’s nappy fits just right? Let’s break it down!
How Many Nappies Does a Baby Use?
Babies go through a LOT of nappies, especially in the early days. Here’s a rough guide to how many you’ll need per day:
👶 Newborns: 10-12 nappies per day
🍼 A few weeks old: Around 8 per day
🧸 As they grow: Around 5 per day
Nappy Size Guide: It’s All About Weight!
Unlike baby clothes, nappy sizes aren’t based on age or gender—because let’s be real, babies grow at their own pace! Instead, weight is the best indicator.
🟡 Size 0-1: ~8 nappies/day (2-5kg | 4-11lb)
🟠 Size 2-3: ~7 nappies/day (4-10kg | 9-22lb)
🔵 Size 4+: ~5 nappies/day (9kg+ | 20lb+)
💡 Pro tip: If your baby is on the longer side, they may need a different fit, even if their weight falls within the range.
🔍 How to Weigh Your Baby at Home: Step on the scales while holding them, then subtract your own weight. Easy!
How to Tell If Your Baby’s Nappy Fits Properly
Once you’ve got the right size, you’ll want to make sure it fits just right. Here’s what to check:
✅ Waistband Position – The top of the nappy should sit just below your baby’s belly button.
✅ Leg Cuffs – There shouldn’t be any gaps! Run two fingers inside the cuffs after putting the nappy on to make sure they’re snug.
✅ Waistband Fit – Once fastened, you should be able to fit two fingers under the waistband. This means it’s secure but not too tight.
✅ No Red Marks – When you take the nappy off, your baby’s skin should be mark-free.
Signs It’s Time to Size Up
Babies grow fast, and their nappy size needs to keep up! Here are some clear signs that it’s time to move up to the next size:
🔺 The fastening tapes don’t reach the centre of the waistband (or overlap too much).
🔺 You can’t comfortably fit two fingers under the waistband.
🔺 There are red marks on your baby’s tummy or thighs after wearing the nappy.
🔺 The nappy isn’t fully covering your baby’s bottom.
🔺 Your baby is experiencing frequent nappy rash—this could mean their nappy is too small to keep moisture away from their skin.
🔺 Your little one seems uncomfortable (for example, tugging at their nappy).
Final Thoughts
Getting the right nappy size isn’t just about avoiding messes (although that’s a huge plus!). A well-fitting nappy keeps your baby comfy, prevents leaks, and helps their delicate skin stay rash-free.
So, if you’re noticing signs that your baby’s nappy isn’t fitting quite right, don’t wait—size up and enjoy fewer leaks and happier changes! 😊