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.
What is your estimate?
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Reference answer
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≈ 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.
- Annual fast-delivery volume≈ 13 billion items
- Days per year≈ 365
- Estimate13B ÷ 365 ≈ 35.6M items/day
Keep practicing
Try another question, or return to the daily challenge to build your personal sense of scale.