Diaper Usage Calculator

Averages reported by parents; every baby is different. Fewer at night once the baby sleeps through, more during growth spurts, teething or illness.

Size charts are approximate and vary by brand — check the pack for the brand's own weight range. Size up when the waist tape sits at the outermost position or when leaks become frequent.

One month = 30 days. Bigger packs usually cost less per diaper — the per-diaper price is the number that matters for budgeting.

Handy before subscription renewals or bulk-buy sales: know exactly how many days your current stock covers.