What is Fermi?
Three daily estimation questions from different categories. You won't know the exact answer, so reason your way to a sensible number.
Fermi is a free daily estimation game that will also appeal to fans of trivia games. Everyone gets the same puzzle each day, so it's easy to compare results with friends.
How to play Fermi
- Read today's estimation question. No googling, just napkin math and gut instinct. There's a built-in calculator.
- Lock in your guess. The answer is revealed and you're scored by how many times off you were.
- Answer three questions, then compare your score with other players and friends.
Fermi tips
- Break the question into smaller numbers you can estimate, then multiply.
- Being 2x off is good and 10x off is poor, so focus on getting the scale right.
