All Fermi answers
Fermi #107 · Question 1

How many T-shirts can be made from one 480 lb (218 kg) bale of cotton?

Explore the official answer and the simple reasoning behind this Fermi estimate.

1QUESTION 1 OF 3

Answer & explanation

The official answer, with Fermi’s reasoning step by step.

Answer & explanation

Official answer

1,217

T-shirts

How to estimate it

Fermi’s official “Napkin math”

I think a t-shirt is around half a pound. If we can just take the 480 lb of cotton directly and turn it into the same weight's worth of t-shirts, it would be almost 1,000 t-shirts.

The bale
480 lb
One t-shirt
÷ ½ lb
480 × 2
≈ 960 t-shirts

Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.

Source calculation & reference
One bale of cotton (National Cotton Council)
480 lb
Men's T-shirts per bale
1,217
Each shirt uses about
6.3 oz
≈
1,217 T-shirts

Reference cited by Fermi: National Cotton Council

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