Each day Weighroo gives you 5 real things, from a mosquito to an aircraft carrier. Slide along the scale (or use ÷2, −, + and ×2) to the weight you think each one is, then lock it in to see the real weight, a short fact and how it compares with a big red kangaroo.
Scoring is by ratio, not by difference. Within 10% of the real answer scores 100 points, twice too high or too low scores about 70, and 10 times off scores 0. The best possible daily score is 500.
How much does a blue whale weigh? How heavy is the Eiffel Tower? How much does a golf ball weigh? How heavy is a car? Every day mixes tiny things, food, animals, vehicles, buildings and world totals, so it works as a weight quiz and an estimation game. The answers to every question are in all weights.
A new set of 5 arrives every day at midnight in your local time.
Yes. Weighroo is free to play in your browser, with no account or download. Your streak and best score are saved on your own device.
Guessroo's mascot is a kangaroo, and every answer is also compared with a red kangaroo, so you can feel the weight.
Tell us at [email protected] and we will check it.