18 games like Fermi

Ranked by how much each one has in common with Fermi — 18 that share its format, pace or language — then by how many people actually play them. All free in your browser, no signup.

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  1. 1
    100 of Us 4,259 plays

    Of 100 people in the world, how many…? Press and hold to guess, then see the real number with its source. One question a day.

  2. 2
    Plain Game 4,024 plays

    A daily estimation game where you make seven guesses to get close to target numbers and everyday facts.

  3. 3
    Costcodle Also daily and medium

    How much does this Costco item cost? Six tries, high or low after each.

  4. 4
    Fermi Unlimited 1,673 plays

    Make educated numerical guesses to Fermi-style estimation questions and see how close your answer is.

  5. 5
    Size It Up 968 plays

    Resize silhouettes to guess the real-world size of objects across five daily rounds, then compare how close each guess was.

  6. 6
    Size It Up Unlimited 722 plays

    Scale different objects to estimate their real-world size, then see how close the guess was.

  7. 7
    Size Comparison Game 443 plays

    Resize real-world objects against a fixed reference and guess their size in a daily five-round challenge.

  8. 8
    No Idea 185 plays

    One impossible number a day, like how many pigs live in China. One guess, scored by how close you land.

  9. 9
    Amountle 167 plays

    Daily estimation game where you watch objects drop into a container and guess how many are inside across five timed rounds.

  10. 10
    Estimadle Also daily and english

    Estimate the number of circles within 10 seconds.

  11. 11
    Guess The Angle Also daily and english

    Four guesses or fewer to name today's angle.

  12. 12
    Daily Ballpark 90 plays

    A daily Fermi estimation game where you guess an impossible-sounding number and try to reach the answer in as few strokes as possible.

  13. 13
    SizeItUp 90 plays

    A daily game that tests the user's sense of scale with new challenges like Cosmic Scale, Prehistoric Giants, Kitchen Table, and Tiny Worlds

  14. 14
    Estimate Me Also daily and english

    Estimate something new every day!

  15. 15
    How big? 86 plays

    A daily size estimation game. Each day a new object is shown next to a fixed reference shape, and you drag the object or type a value in meters to match how big it really is, then see the true measurement and how far off you were. Hints and an archive of past days are available.

  16. 16
    Weighsies 73 plays

    A daily weighing game where players estimate how many familiar objects balance a heavier item, then solve balance-scale puzzles.

  17. 17
    Guess The House Also daily and english

    Pictures of a house and the details around it. What did it sell for?

  18. 18
    Same Street 69 plays

    Three photos of one real home. Place it on a street of 100 houses sorted by income. One home a day.