Ballpark — June 15, 2026
Answers to that day's 5 daily estimation questions.
Percentage of calories from fat in an avocado
~77%
One of the few high-fat plant foods.
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.
About how many grams of table salt are in one teaspoon?
6 g
A teaspoon of salt is heavier than sugar—often around 6 grams.
About how many gallons of water per minute does a typical shower use?
2 gal/min
Many showerheads are around 1.5–2.5 gallons per minute.