Independent Diaper Research

Find the right diaper, every time.

Quality Diapers cuts through the noise — honest comparisons, real sizing guidance, and buying guides built for parents who do their homework.

✓ No paid placements ✓ Amazon affiliate, no brand bias ✓ Research-backed, not guesswork
Essential reference

Diaper size chart

Every brand fits differently. Use this chart as a starting point — but always watch for fit signals over label numbers.

SizeWeight (lb)Weight (kg)
PreemieUp to 6 lbup to ~2.7 kg
Newborn (N)6–10 lb~2.7–4.5 kg
Size 18–14 lb~3.6–6.4 kg
Size 212–18 lb~5.4–8.2 kg
Size 316–28 lb~7.3–12.7 kg
Size 422–37 lb~10–16.8 kg
Size 527–35+ lb~12.2–15.9+ kg
Editorial standards

Built on research, not brand deals

Quality Diapers is independently operated. No brand pays for placement, and no product earns a recommendation without meeting our research criteria.

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Research-based

We review public product information, manufacturer specifications, and published safety guidance to form our recommendations.

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No paid placements

Brands cannot pay to appear in guides or comparisons. Rankings reflect our research only.

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Reader first

If a product does not meet our criteria, it does not appear — regardless of affiliate potential.

Read our editorial policy