It's about one-and-three-fifths times as big as a STARBUCKS Venti Coffee
In other words, the size of a STARBUCKS Venti Coffee is 0.630 times 251 drams.A STARBUCKS Venti coffee drink measures 160 drams. The name of the size, Venti, is the Italian word for twenty.
It's about three-fifths as big as an Ostrich Egg
In other words, 251 drams is 0.56850 times the size of an Ostrich Egg, and the size of an Ostrich Egg is 1.7590 times that amount.(Struthio camelus) (for common ostrich; average)
The largest egg produced by living birds, ostrich eggs measure about 432.80 drams in volume. The eggs take about nine weeks to hatch, with males and females taking turns incubating them.
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, 251 drams is 2.82275820 times the size of a Baseball (packed), and the size of a Baseball (packed) is 0.354263430 times that amount.(64% packing density) (MLB rules)
Per Major League Baseball rules, a baseball must measure between about 54.5713260 drams and 59.2464290 drams. A major league pitcher can throw a fastball at up to 150 kph (91 mph).
It's about four-and-a-half times as big as a Baseball
In other words, 251 drams is 4.4105596560 times the size of a Baseball, and the size of a Baseball is 0.22672859640 times that amount.(MLB rules)
Per Major League Baseball rules, a baseball must measure between about 54.571326340 drams and 59.246429040 drams. 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 251 drams.(for 70 kg body; average altitude; average)
The volume of blood in the average human body is about 1,000 drams. Persons living at high altitude, however, may have up to an additional 500 drams of blood to compensate for the lower oxygen level.