Ballpark — September 27, 2026

Answers to that day's 5 daily estimation questions.

Number of cities with over 10 million people

~33 cities

Tokyo remains the largest, followed by Delhi and Shanghai.

Total weight of all ants on Earth

~12 million tons

There are estimated to be 20 quadrillion ants globally.

Number of symphonies written by Beethoven

9 symphonies

He was working on a tenth when he passed away.

Number of active volcanoes in the world

~1,350 volcanoes

About 50–70 erupt every single year.

Percentage of the world living in Asia

~60%

Led by the massive populations of India and China.