What Size Diapers To Buy Apr 2026

: If leaks or "peesplosions" are happening daily despite a proper snug fit, the diaper likely lacks the absorbency needed for your baby’s output.

: Look for red indentations around your baby’s thighs, groin, or waist after removing the diaper. what size diapers to buy

Weight ranges overlap significantly, so you’ll often need to look for these physical cues that the current size is too small: : If leaks or "peesplosions" are happening daily

Most major brands, including and Huggies , follow a similar weight-based sizing structure. Diaper Size Baby's Weight (lbs) Approximate Age Preemie Under 6 lbs Newborn (Premature) Newborn (N) Up to 10 lbs 0–1 month Size 1 8–14 lbs 1–4 months Size 2 12–18 lbs 3–8 months Size 3 16–28 lbs 5–24 months Size 4 22–37 lbs 18–36 months Size 5 Over 27 lbs Size 6 Over 35 lbs Source: Consolidated from Hiccapop and BabyCenter . 5 Signs It's Time to Size Up Diaper Size Baby's Weight (lbs) Approximate Age Preemie