Estimatle

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Five numerical questions a day: slide to your best estimate.

Play Estimatle

on estimatle.com

Estimatle #85, question 1 on a desktop: how many revolutions per minute a standard vinyl single plays at, with a slider from 20 to 70, step buttons and a Lock it in button

Estimatle is a daily estimation game with five numerical questions. You move a slider to your best guess, submit, and see the real answer, your score and a spread of other players' guesses. Each question is worth up to 100 points, minus one for every step you are off.

About Estimatle

Estimatle asks five questions a day whose answers are numbers: how far, how many, how heavy and so on. Instead of typing, you drag a slider or use the step buttons and arrow keys to set your estimate. Every answer comes with a source, and some questions are sent in by players through the site's Submit a question page.

Scoring is simple. Each question is worth up to 100 points, and you lose one point for every step between your estimate and the correct answer, so ten steps off is 90 points and fifty steps off is 50. After each submission you see the correct figure and how other players guessed, which turns a lone guess into a comparison with the crowd.

An anonymous account is created on your first play to store scores and your streak on that device, and you can sign in with Google to carry them across devices. You can switch between metric and US units at any time. It suits players who like reasoning their way to a number more than recalling a fact.

A History page keeps your own past games, average score and streak, but past days cannot be replayed.

How to play Estimatle

Press Start Today's Game.
Read the first question and drag the slider to your estimate, or use the buttons or arrow keys.
Submit to see the correct answer, your points and other players' guesses.
Repeat for all five questions.
Check your total out of 500 and keep your daily streak going.

Screenshots

Estimatle on a phone after the first answer: your answer 20 against the true answer 45, a histogram of 441 players' guesses, and the score

Estimatle banner: How close can you get? Five estimation questions a day, with a histogram of guesses

Tips

Break the question into parts you can estimate, then multiply; that is usually closer than a gut guess.
Set your preferred units before you start so the numbers feel familiar.
Look at where other players landed after each question to calibrate the next one.
Read the source after each answer; similar questions come back in new forms.