Ballpark — July 27, 2026
Answers to that day's 5 daily estimation questions.
About how many calories are in a plain bagel?
~350 calories
Bagels are dense—often closer to a meal than a snack.
People who attend Burning Man annually
80,000 people
Limited by federal land management permits.
Olympic swimming pool length
50 meters
Known as a "long course" pool.
Population of Australia
26.0 million people
Most of the population lives along the coast.
About how many liters can a typical grocery shopping cart hold?
~150 L
A full-size grocery cart holds on the order of a hundred liters.