It's about 30,000,000 times as big as a Human Stomach
It's about 40,000,000 times as big as an Ostrich Egg
In other words, 1,800,000 bushels is 38,870,000 times the size of an Ostrich Egg, and the size of an Ostrich Egg is 0.000000025730 times that amount.(Struthio camelus) (for common ostrich; average)
The largest egg produced by living birds, ostrich eggs measure about 0.0454 bushels in volume. The eggs take about nine weeks to hatch, with males and females taking turns incubating them.
It's about 0.00000002 times as big as an Halley's Comet
In other words, 1,800,000 bushels is 0.0000000160 times the size of an Halley's Comet, and the size of an Halley's Comet is 63,000,000 times that amount.(Comet Halley, officially "1P/Halley") (volume calculated based on 2005 dimensions)
Halley's Comet, the famous comet visible to observers on Earth approximately every 76 years, has a peanut- or potato-shaped nucleus made of rock, dust, ice, and various frozen gasses. The nucleus measures approximately 15 km by 8 km by 8 km, which yields a calculated volume of 110,000,000,000,000.00000000000000000 bushels. The coma of the Comet — the trail of sublimated gasses that give the Comet its visibility — may be up to 100,000 km in length.
It's about 0.00000002 times as big as The Grand Canyon
In other words, 1,800,000 bushels is 0.00000001520 times the size of The Grand Canyon, and the size of The Grand Canyon is 65,800,000 times that amount.(Coconino County and Mohave Counties, Arizona, near Fredonia and Grand Canyon, Arizona)
A dynamic and continuously changing landscape, the Grand Canyon has an approximate volume of 118,000,000,000,000.000000000000000000 bushels. The strata of the rock visible in the Canyon's walls display nearly 2 billion years of geological history.
It's about 100,000,000 times as big as a Blood Donation
It's about 100,000,000 times as big as a STARBUCKS Venti Coffee
In other words, 1,800,000 bushels is 110,000,000 times the size of a STARBUCKS Venti Coffee, and the size of a STARBUCKS Venti Coffee is 0.00000000910 times that amount.A STARBUCKS Venti coffee drink measures 0.017 bushels. The name of the size, Venti, is the Italian word for twenty.
It's about 200,000,000 times as big as a Baseball (packed)
In other words, 1,800,000 bushels is 192,967,300 times the size of a Baseball (packed), and the size of a Baseball (packed) is 0.00000000518222520 times that amount.(64% packing density) (MLB rules)
Per Major League Baseball rules, a baseball must measure between about 0.0057247067 bushels and 0.0062151399 bushels. A major league pitcher can throw a fastball at up to 150 kph (91 mph).