It's about 2,000 times as heavy as a Human Brain.
In other words, 2.80 tons is 1,880 times the weight of a Human Brain, and the weight of a Human Brain is 0.000532 times that amount.(adult)
The average weight of an adult human brain is between 0.00149 tons. 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 2,500 times as heavy as a liter of Water.
In other words, 2.80 tons is 2,540.046 times the weight of a liter of Water, and the weight of a liter of Water is 0.0003936937 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 0.001102342 tons 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 one-four-thousandth as heavy as The Eiffel Tower.
In other words, 2.80 tons is 0.000251 times the weight of The Eiffel Tower, and the weight of The Eiffel Tower is 3,980 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (total weight)
The Eiffel Tower weighs approximately 11,100 tons. Architected to be quickly assembled, the Tower contains only 7.5 cu. m (260 cu. ft) of solid material.
It's about 4,000 times as heavy as a Basketball.
In other words, 2.80 tons is 4,072.72727270 times the weight of a Basketball, and the weight of a Basketball is 0.00024553571429 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 0.0006875 tons. These balls have 4,118 pebbles each with a diameter of 2.5 mm
It's about one-five-thousandth as heavy as The Brooklyn Bridge.
In other words, 2.80 tons is 0.0001907 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 5,244 times that amount.(a.k.a. New York and Brooklyn Bridge) (Manhattan and Brooklyn, New York City, New York) (total weight)
The total weight of the Brooklyn Bridge is approximately 14,680 tons. In a promotional event to prove the bridge's stability shortly after it opened, entertainer P. T. Barnum led a parade of 21 elephants across it in May of 1884.
It's about 6,000 times as heavy as a Football (Soccer).
In other words, 2.80 tons is 5,900 times the weight of a Football (Soccer), and the weight of a Football (Soccer) is 0.00017 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 0.00045 tons and 0.0005 tons. 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 6,000 times as heavy as a Football (American).
In other words, 2.80 tons is 6,179.3103448280 times the weight of a Football (American), and the weight of a Football (American) is 0.0001618303571429 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.0004375 tons and 0.00046875 tons. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.