Four new mystery charts every day, with the satisfaction of figuring out what the data represents from clues alone.
Weightle
Guess how many small items match a larger object's weight.
What is Weightle?
Weightle is a free daily browser game that asks players to estimate how many small objects, such as coffee mugs or smartphones, would balance a larger target object like a refrigerator or a pickup truck on a two-pan scale. It is inspired by Fermi questions, which involve rough order-of-magnitude estimation.
How to play Weightle
Each day at 00:00 UTC, a new balance puzzle goes live, with three progressive rounds that increase in difficulty. Players enter the number of counter-items they think will match the target object's weight, and the animated scale responds to show how close the estimate is. Scoring is logarithmic, so getting the right order of magnitude matters more than an exact guess.
Tips & strategy
- Start by setting a rough baseline weight for both the target object and the counter-item before doing any arithmetic.
- When you are unsure, round numbers to the nearest power of ten to focus on the order of magnitude.
- Think about how the target object compares to something familiar, like a human adult, a car, or a household appliance.
- If your first estimate is off, adjust by factors of ten rather than by small increments.
- Remember that everyday objects vary in weight; choose a midpoint value if you only know a range.
Frequently asked questions
Is Weightle free?
Yes, Weightle is a free daily browser game.
Do I need to install an app?
No, you can play it in a web browser, though JavaScript is required to run the interactive animated scale.
When does the daily puzzle update?
A new global balance puzzle is generated every day at 00:00 UTC.
What is logarithmic scoring?
Logarithmic scoring evaluates estimates by order of magnitude, so being in the right ballpark is rewarded even for very large or very small weights.
Can I play more than one puzzle per day?
Yes, there is an Endless Mode with infinite randomized pairings to test your mass intuition anytime.
Where to play
Play Weightleweightle.org · free, new puzzle daily
Keep your curiosity going
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