It's about three-fifths as big as an Ostrich Egg
In other words, 1 liters is 0.61270 times the size of an Ostrich Egg, and the size of an Ostrich Egg is 1.6320 times that amount.(Struthio camelus) (for common ostrich; average)
The largest egg produced by living birds, ostrich eggs measure about 1.6 L in volume. The eggs take about nine weeks to hatch, with males and females taking turns incubating them.
It's about one-and-seven-tenths times as big as a STARBUCKS Venti Coffee
In other words, the size of a STARBUCKS Venti Coffee is 0.590 times 1 liters.A STARBUCKS Venti coffee drink measures 0.590 liters. The name of the size, Venti, is the Italian word for twenty.
It's about two times as big as a Blood Donation
It's about half as big as a Human Stomach
It's about three times as big as a Baseball (packed)
In other words, 1 liters is 3.0421931 times the size of a Baseball (packed), and the size of a Baseball (packed) is 0.328710230 times that amount.(64% packing density) (MLB rules)
Per Major League Baseball rules, a baseball must measure between about 0.201733340 liters and 0.219015750 liters. A major league pitcher can throw a fastball at up to 150 kph (91 mph).
It's about five times as big as a Baseball
In other words, 1 liters is 4.7534267510 times the size of a Baseball, and the size of a Baseball is 0.21037454710 times that amount.(MLB rules)
Per Major League Baseball rules, a baseball must measure between about 0.20173334160 liters and 0.21901575260 liters. A major league pitcher can throw a baseball at up to 150 kph (91 mph) in a fastball pitch.
It's about one-fifth as big as The Blood in a Human Body
In other words, the size of The Blood in a Human Body is 5 times 1 liters.(for 70 kg body; average altitude; average)
The volume of blood in the average human body is about 5 L. Persons living at high altitude, however, may have up to an additional 2 L of blood to compensate for the lower oxygen level.