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Cushies baby diapers
Baby diaper size guide

Newborn (NB) Diaper Size: Weight, Age & How Many You Need

NB (newborn) diapers fit babies up to about 5 kg. Most babies wear them from birth for 3 to 6 weeks, and use 10 to 12 a day.

NB

Newborn

Tape

Baby weight
up to 5 kg
Usual age
birth to about 1 month
Numbered size
Newborn / Size 0
Diapers a day
10–12

Who needs NB size

Most babies are born between 2.5 and 4 kg, so NB fits almost every newborn. NB diapers are smaller, softer and have a cut-out at the front for the umbilical cord. Bigger babies (over 4 kg at birth) may go straight to S.

How many NB diapers to buy

Newborns use 10 to 12 diapers a day, around 300 in the first month. Do not buy too many NB packs: many babies move to S within 3 to 4 weeks.

How to check the NB size fits

  • The waistband sits just below the belly button and you can slide two fingers under it.
  • The leg cuffs are pulled out, not tucked in, and leave no deep red marks.
  • No leaks up the back or at the sides after a normal wear.

Leaks, red marks or tapes that barely reach the front mean it is time to move up a size.

NB diaper size: common questions

Can a newborn wear XXL diapers?

No. XXL is made for toddlers of 15 to 25 kg. A newborn needs NB size, which fits up to about 5 kg. A diaper that is too big will leak and rub.

How long do babies stay in NB diapers?

Usually 3 to 6 weeks, until they weigh about 4 to 5 kg.

Is NB the same as size 0?

Roughly, yes. NB in Indian sizing matches 'Newborn' or 'Size 0' in US and European sizing.

Wholesale & private label

Need NB size diapers in bulk?

Cushies supplies NB size tape diapers to shops, distributors, online sellers and private label brands. Tell us how many you need.

We reply within one working day. Your details are only used to answer your enquiry.