Fermi question · Business

On average, about how many Amazon Prime items arrived the same or next day worldwide per day in 2025?

Make a fast, defensible estimate before you reveal the reference answer. Think in factors, not exact recall.

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What is your estimate?

items per day

Use a positive number. Commas and scientific notation are okay.

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Reference answer

Reveal the reference answer

≈ 35.6 million items per day

Fermi estimates are judged by scale, so a reasonable approximation can still earn a strong score.

One way to estimate it

Estimate annual fast-delivery volume, then divide by the number of days in a year.

  1. Annual fast-delivery volume≈ 13 billion items
  2. Days per year≈ 365
  3. Estimate13B ÷ 365 ≈ 35.6M items/day

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