Fermi #75 · Question 3 of 3

How many Oreo cookies are sold around the world each day?

Fermi Answers Today
Answer

164,000,000 Oreos

164 million Oreos

Napkin math

The US population is about 330 million. Maybe 1 in 10 people eat Oreos on a given day. Each of them eats two cookies. Oreos are sold worldwide. Assume the US accounts for one third of worldwide sales.

Napkin math
Americans330,000,000
1 in 10 eat 2 today≈ 66,000,000
US is a third of the world× 3
66M × 3≈ 200,000,000

The published breakdown

Published breakdown
Oreo cookies sold each year (Mondelez International)≈ 60,000,000,000
Days in a year÷ 365
60B ÷ 365≈ 164,000,000

Source

Mondelez International, 2024

The other questions

Fermi's answer to this one is 164,000,000 Oreos.

It was question 3 of 3 in Fermi #75, played on Friday, October 9, 2026. The napkin route starts from one figure you might already know and works out from there (starting point: Americans, 330,000,000).

What each guess would have scored

Fermi never marks a guess right or wrong. It divides the larger number by the smaller, so the score says how many times off you were. Lower is better.

Score windows

ScoreGuesses that earn it
1× (Spot On)Exactly 164,000,000 Oreos
1.5× or better110 million to 246 million Oreos
2× or better82 million to 328 million Oreos
3× or better54.7 million to 492 million Oreos
10× or better16.4 million to 1.64 billion Oreos

High and low misses count the same. Guessing half the answer scores 2×, just like guessing double.

How the napkin math would have scored

Fermi's rough working for this question ends at ≈ 200,000,000. Typed in as a guess, that comes back Too High and scores 1.22×, landing about 22% over the real number.

The other questions in Fermi #75 were How many days does a container ship take to sail from Shanghai to Rotterdam through the Suez Canal? (30 days) and How many wild elephants lived in Africa at the last full continent-wide count, published in 2016? (415,000 elephants). All three answers are on the Fermi #75 answers page.

Frequently asked questions

What is the Fermi answer to "How many Oreo cookies are sold around the world each day?"

164,000,000 Oreos. It was question 3 of Fermi #75, Friday, October 9, 2026.

What guess scores 2× on this Fermi question?

Anything from 82 million to 328 million Oreos. For 10× or better, anything from 16.4 million to 1.64 billion Oreos works.

How can you estimate this without looking it up?

The US population is about 330 million. Maybe 1 in 10 people eat Oreos on a given day. Each of them eats two cookies. Oreos are sold worldwide. Assume the US accounts for one third of worldwide sales. That route ends at ≈ 200,000,000.

Where does this Fermi answer come from?

Mondelez International, 2024.

How does Fermi scoring work?

Each guess turns into a multiple: the larger of your guess and the answer, divided by the smaller. Exact is 1×, off by double or by half is 2×, and ten times off is 10×. The three multiples are then combined with a geometric average (multiply them, take the cube root) to give the day score. Lower is better.

Where can I play Fermi?

In any web browser at fermi.gg. It's free, and you can play without an account. Signing in adds the leaderboard, the stats page and your history on every device.