Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
830,000
hummingbirds
How to estimate it
Fermi’s official “Napkin math”
The H2 is the big Hummer SUV from the 2000s, heavier than a full-size pickup. Maybe 6,000 pounds. How heavy is a hummingbird? About a penny, call it a tenth of an ounce.
- Hummer H2
- ~6,000 lb
- 6,000 × 16 oz
- = 96,000 oz
- One hummingbird
- ~0.1 oz
- 96,000 ÷ 0.1
- ≈ 960,000
The H2 is the big Hummer SUV from the 2000s, heavier than a full-size pickup. Maybe 3 tonnes, so 3,000 kilograms. How heavy is a hummingbird? About a small coin, call it 3 grams.
- Hummer H2
- ~3,000 kg
- In grams
- = 3,000,000 g
- One hummingbird
- ~3 g
- 3,000,000 ÷ 3
- ≈ 1,000,000
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Hummer H2 curb weight (2003 spec)
- 2,909 kg (6,400 lb)
- Average ruby-throated hummingbird
- ÷ 3.5 g
- 2,909,000 ÷ 3.5
- ≈ 831,000
- ≈
- 830,000
Reference cited by Fermi: Journey North hummingbird weights; Hummer H2 factory spec via Auto123
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