Fermi.gg
Game Info Hub
Fermi.gg is a short daily puzzle made by Flatwhite Studios. The whole thing runs in any web browser and usually takes under two minutes. It sits in the puzzle and estimation space, works for teens and adults who like numbers, and is offered as a free online daily challenge with three fresh questions each day.
How to play Fermi.gg
Players open the page and face three questions that nobody knows off the top of their head. How many golf balls fit in a Volkswagen? How long would it take to listen to every Beatles track?
One guess per question. Type the number, hit Lock It In, and the game shows how far off the answer landed as a multiplier. An exact hit scores 1×. Ten times too high or low scores 10×. Lower average across the three is better. A small calculator sits right there for the napkin math, but searching the web is off limits. After each lock, the real number, a quick breakdown, and how other players did pop up. That is the whole loop.
Game Controls
Action | Input |
Type estimate | Keyboard or on-screen |
Use calculator | Click or tap keys |
Lock answer | Lock It In button |
Next question | Auto after reveal |
Share score | Share button |
Start with a wide range, then cut it in half twice
- Break the question into smaller pieces you can actually guess.
- Use the calculator for the last step only.
- Stay inside one order of magnitude if possible.
- Check past results to see common miss patterns.
- Skip the perfect answer hunt. Close is the real win.
Related Adventures
Pull up Fermi.gg Free in the browser, lock in today’s three guesses, and see how the numbers stack up.
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