Ballpark — September 7, 2026
Answers to that day's 5 daily estimation questions.
Percentage of Earth covered by water
71%
Includes oceans, lakes, and rivers.
Ants on Earth (estimated)
20 quadrillions
Total biomass is greater than all wild birds and mammals.
Standard length of a shipping container
20 feet (length)
20-foot (TEU) and 40-foot are the standards.
Average salary of an NBA player
10 USD (millions)
Driven by massive TV deals.
Total student loan debt in the US
1.7 USD (trillions)
Has more than doubled in the last decade.