Diaper needs will change as your baby grows, becomes more active, and approaches different development milestones. Pampers offers a full lineup of diapers and pants to support your little one at every age and stage of development. If you can't comfortably fit two fingers under the waistband of the fastened diaper, it's time for a bigger size. If your baby regularly gets diaper rash, it may be because the diaper is too small and doesn’t keep the moisture away from their skin. As newborns have very delicate skin (and need gentle materials and appropriate skin care), look for a diaper that's Although all Pampers diapers and pants are designed with optimal absorption and leak protection, the following are best for swimming and overnight protection.

We’ve also included information on our diaper size comparison chart to help answer two common questions:

For example, you might like Pampers Cruisers 360° or Pampers Easy Ups. For Overnight Protection and Swimming Convenience

Babies come in all sizes and shapes, so diapers fit a little differently on every child. Pampers diaper sizes go by your baby’s weight—not age or gender—as weight is the most accurate way to determine the correct fit. Most of the time, your baby's weight will fall neatly within the range of a certain diaper size, producing a good fit. But in some cases, you might need to choose between two sizes, as the weight ranges can overlap. When your baby wears the correct diaper size, good things happen! A well-fitting diaper in the right size will be more comfortable for your baby and can help prevent leaks and blowouts from occurring. First, it helps to understand how diaper sizes work. A common question among parents is how to read a diaper size chart by age; however, age isn’t the ideal factor to consider. Instead, after taking hundreds of thousands of measurements, Pampers has organized diaper size by weight to help you select the right diaper. As you’re looking at the diaper size comparison chart below, keep in mind that your little one’s weight will be the most important factor.Pampers Splashers are highly absorbent without swelling, so the fit and feel don’t change when your little one is playing in the water. Besides an increase in weight, there are additional signs that your baby might be ready for a larger diaper size. The following guidelines can help ensure your little one is wearing the correct diaper size: To find a diaper size for your baby, look for your baby’s weight (which you can determine at home or obtain from your child’s healthcare provider at each well-baby visit). For example, a size 1 diaper’s weight range is for a baby who is between 8 and 14 pounds, whereas a size 2 diaper’s weight range is between 12 and 18 pounds. If a diaper is too small, it can leak because there isn’t enough absorbency for the volume of baby poop or pee. The diaper can’t properly do its job, and moisture can irritate your baby’s skin.