Diaper Cost Calculator
Estimate how many diapers a baby uses and what they cost per month, per year and until potty training.
For general information only — not medical advice. Results are estimates; talk to a doctor or qualified health professional about your own health.
How to use
- 1Enter the price per diaper (pack price ÷ count).
- 2Enter the baby's age now and when you expect potty training.
How it's calculated
Diapers per day by age: newborn–1 month ≈ 10, 1–5 months ≈ 8, 5–12 months ≈ 7, 12+ months ≈ 6. Cost = diapers × price.
Frequently asked questions
How many diapers does a baby use in the first year?
Roughly 2,500–3,000 — about 8 a day on average.
When do children potty train?
Most between 2 and 3 years; many are fully trained by 3 to 3½.
Are cloth diapers cheaper?
Usually over time, once you account for washing costs, especially if reused for more than one child.