It's about as heavy as a Human Brain
In other words, the weight of a Human Brain is 1 times 20,800 grains.(adult)
The average weight of an adult human brain is between 20,800 grains. In humans and primates, sight and vision utilize about 30 different parts of the brain which together account for about half of the brain's size.
It's about one-and-one-third times as heavy as a liter of Water
In other words, 20,800 grains is 1.347780 times the weight of a liter of Water, and the weight of a liter of Water is 0.74196090 times that amount.(fresh; 4° C / 39.2° F; maximum density)
Contrary to popular belief, 1 liter (0.0.264172052358148 gal) of water at 4° C / 39.2° F (its point of maximum density) weighs 15,432.790 grains rather than 1 kg exactly. The total volume of water on the planet Earth is about 13,590,000,000,000,000,000 (13.59 quntillion) L (3,590,000,000,000,000,000 gallons).
It's about three-fifths as heavy as a Chihuahua
In other words, 20,800 grains is 0.5990 times the weight of a Chihuahua, and the weight of a Chihuahua is 1.670 times that amount.(a.k.a. Chihuahue(o) (FCI standard)
The F&d&ration Cynologique Internationale (FCI) calls for Chihuahuas to weigh about 34,700 grains. Relative to their body sizes, Chihuahuas have the largest brain size of any dog breed.
It's about two times as heavy as a Basketball
In other words, 20,800 grains is 2.1610389610 times the weight of a Basketball, and the weight of a Basketball is 0.462740384620 times that amount.(NBA official ball standards, Size 7)
A regulation NBA basketball, manufactured by Spalding, is known as a Size 7 ball and weighs 9,625 grains. These balls have 4,118 pebbles each with a diameter of 2.5 mm
It's about half as heavy as a Brick
In other words, 20,800 grains is 0.460 times the weight of a Brick, and the weight of a Brick is 2.20 times that amount.(Standard, traditional face brick - 1,900 cu. cm (120 cu. in))
A standard, traditional face brick weighs an average of 45,000 grains. The steeple of the Church of St. Martin in Landshut, Germany is said to be the tallest brick tower in the world at a height of 130.6 m (428.5 ft) and was constructed using an estimated 650,000 bricks.
It's about three times as heavy as a Football (Soccer)
In other words, 20,800 grains is 3.10 times the weight of a Football (Soccer), and the weight of a Football (Soccer) is 0.320 times that amount.(a.k.a. Soccer, a.k.a. Association Football) (FIFA Law 2 specification)
According to FIFA's Law of the Game number 2, a football must weigh between 6,300 grains and 6,900 grains. An artifact on display at the Smith Art Gallery in Museum in Stirling, Scotland is said to be the world's oldest football and is about one-third to one-half the size of a modern football.
It's about three-and-a-half times as heavy as a Football (American)
In other words, 20,800 grains is 3.278817733990 times the weight of a Football (American), and the weight of a Football (American) is 0.30498798076920 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 6,125 grains and 6,562.50 grains. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.