How do I play this quiz?

Test your knowledge with the World Country Population Guessing Challenge Quiz and see how well you understand global populations.

Do abbreviations or alternate spellings count?

Yes. Most quizzes allow common abbreviations, alternate spellings, and short forms. Try typing just the first few letters — if it matches, it will autofill.

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World Country Population Guessing Challenge

Directions

Upon clicking START you’ll be shown a country and a population slider below it. Move the slider to the country’s population and click SUBMIT. You’ll get a score from 0 to 100 based on how accurate your guess was. Complete 20 random countries to end the quiz.

If you click on the slider you can use the left and right arrows to move it more accurately.

Enter guesses above to begin.

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PatrickSHG

1 month ago

Great idea. Do you plan to do it with cities as well?

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darin

1 month ago

Reply to PatrickSHG

There are some city based ones just made and more coming.

Philip

2 months ago

This is a really fun idea. However the scale of the slider changes from country to country which effectively tips off the answer. The correct number seems to consistently be in the center-left portion (2nd quartile) of the scale.

There aren’t great solutions but using a single logarithmic scale might help.

Author

darin

2 months ago

Reply to Philip

I’ve switched it to logarithmic. Got it so it should work well now.

Philip

1 month ago

Reply to darin

Thanks! Oh yeah, much harder… in a good way. Now I can’t cheat. 🙂