It's about as heavy as a Human Brain
The average weight of an adult human brain is between 2.980 pounds. 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, 2.980 pounds is 1.3516670 times the weight of a liter of Water, and the weight of a liter of Water is 0.73982720 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 2.2046840 pounds 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, 2.980 pounds is 0.6010 times the weight of a Chihuahua, and the weight of a Chihuahua is 1.660 times that amount.(a.k.a. Chihuahue(o) (FCI standard)
The F&d&ration Cynologique Internationale (FCI) calls for Chihuahuas to weigh about 4.960 pounds. Relative to their body sizes, Chihuahuas have the largest brain size of any dog breed.
It's about half as heavy as a Brick
In other words, 2.980 pounds is 0.470 times the weight of a Brick, and the weight of a Brick is 2.10 times that amount.(Standard, traditional face brick - 1,900 cu. cm (120 cu. in))
A standard, traditional face brick weighs an average of 6.40 pounds. 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 two times as heavy as a Basketball
In other words, 2.980 pounds is 2.16727272730 times the weight of a Basketball, and the weight of a Basketball is 0.461409395970 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 1.3750 pounds. These balls have 4,118 pebbles each with a diameter of 2.5 mm
It's about three times as heavy as a Football (Soccer)
In other words, 2.980 pounds 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 0.90 pounds and 0.990 pounds. 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, 2.980 pounds is 3.2882758620690 times the weight of a Football (American), and the weight of a Football (American) is 0.3041107382550 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.8750 pounds and 0.93750 pounds. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.