Size Guide

Find the right fit with our diaper calculator and size guide.

Diaper Calculator

Slide across to select your baby’s weight. Find the right size and an estimate of how many diapers they use per day.

  • Kg
  • Lbs

Recommended size for your baby*

1
Newborn
3 - 5kg
6 - 11lbs
2
Infant
4 - 6kg
9 - 14lbs
3
Crawler
6 - 11kg
13 - 25lbs
4
Toddler
10 - 15kg
22 - 33lbs
5
Walker
13 - 18kg
29 - 40lbs
6
Junior
16+ kg
35+ lbs

Average number of diapers per day**

Diapers

Still have questions? Our Customer Love team can help you find the right fit. Get in touch here.

*The recommended diaper size and quantity is a guide only.

Global Size Guide

  • Diapers

1 3-5kg
6-11lbs
2 4-8kg
9-18lbs
3 6-11kg
13-24lbs
4 10-15kg
22-33lbs
5 13-18kg
28-39lbs
6 15-20kg
33-44lbs
7 17kg+
37+lbs
  • Training Pants

3 6-11kg
13-24lbs
4
2T-3T
9-15kg
20-34lbs
5
3T-4T
12-18kg
28-40lbs
6
4T-5T
15-20kg
33-44lbs
7 17kg+
37+lbs

*Size availability varies by market.

USA Size Guide

  • Product Name

  • Weight (lbs)

  • Weight (kg)

Size 1 Diapers
6 - 11
3 - 5
Size 2 Diapers
9 - 18
4 - 8
Size 3 Diapers
13 - 24
6 - 11
Size 4 CoComelon Diapers
22 - 33
10 - 15
Size 5 CoComelon Diapers
28 - 39
13 - 18
Size 6 CoComelon Diapers
33 - 44
15 - 20
Size 7 CoComelon Diapers
37 +
17 +
Size 2/3T CoComelon Training Pants
20 - 34
9 - 15
Size 3/4T CoComelon Training Pants
32 - 40
14 - 18
Size 4/5T CoComelon Training Pants
36 +
16 +

Not sure what size to choose?

We recommend choosing a diaper size based on your baby’s weight. If you’re between sizes, try the smaller size first. If you still have questions, our Customer Love team are always here to help. Send us a message with your details, and we’ll help you find the right fit.

*The recommended diaper size and quantity is a guide only.

Ready to join the fun? We've teamed up with our friends at CoComelon to bring you training pants and diapers that are seriously good and seriously fun.

Featuring JJ & friends in our limited edition print.

Available At

Find your local Rascal + Friends stockist.

Still dealing with leaking diapers? 

Get advanced absorption and overnight leak protection with Rascal + Friends premium diapers.

Unique 3D Core Technology

How to start potty training your toddler

How to start potty training your toddler

Toddler

Everything you need to know about potty training your toddler, how to get started and make change-time easier!

Read More
When to size up diapers for your baby

When to size up diapers for your baby

Infant Toddler

Leaking through the night? Diaper too snug? It may be time to size up your baby's diaper! In this article, we cover signs that your baby is ready to size up, how to choose the right size and the transition to training pants.

Read More
How to Overcome Potty Training Regression

How to Overcome Potty Training Regression

For Parents Toddler

Everything you need to know about potty training regression and four key strategies to overcome it.

Read More
Viral Potty Training Hacks

Viral Potty Training Hacks

Toddler

Learn how these four viral tips can help make potty training easier!

Read More
Common Potty Training Mistakes

Common Potty Training Mistakes

Toddler

How to read your toddlers signs and avoid these common potty training mistakes.

Read More

Find us on Instagram