Diaper Size by Weight Converter
Find the right diaper size from your baby’s weight. Enter the weight in kg or lb — it is matched against a standard size chart, and you get a clear recommendation in seconds.
| Size | Weight (kg) | Weight (lb) | Match |
|---|
This is only a guide, not medical advice. Every brand fits a little differently — check the fit: two fingers of space at the waist and no marks on the legs.
How to use
- Enter your baby weight in kg or lb.
- Press Find Size — the recommended size and the full chart will appear.
- If the weight falls between two sizes, take the bigger size (for comfort).
Tips
- If the weight sits between two sizes, choose the bigger size for comfort.
- Size charts differ slightly by brand — check the pack chart when switching brands.
- Red marks on the skin usually mean the size is too small.
Frequently Asked Questions (FAQ)
How do I find the right diaper size?
Enter your baby weight in kg or lb and press Find Size - it matches the weight to the size chart.
What if the weight falls between two sizes?
Take the bigger size for comfort, as the tool recommends.
Does the same chart work for every brand?
Mostly, but size charts differ slightly by brand - check the pack chart when switching brands. Every brand fits a little differently.
How can I tell if the size is too small?
Red marks on the skin usually mean the size is too small. A good fit leaves two fingers of space at the waist and no marks on the legs.