It's about one-seventieth as heavy as a Hippopotamus
In other words, 0.0000000540 megatonnes is 0.0144 times the weight of a Hippopotamus, and the weight of a Hippopotamus is 69.40 times that amount.(Hippopotamus amphibius) (adult, male)
The average weight of an adult male hippopotamus ranges from 0.000003750 megatonnes. Appearances to the contrary, adult hippos cannot swim or float in water; they actually move by leaping and walking across lake bottoms at about 8 kph (5 mph).
It's about 85 times as heavy as a Basketball
In other words, 0.0000000540 megatonnes is 86.5815429670 times the weight of a Basketball, and the weight of a Basketball is 0.011549805718 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 0.000000000623689508750 megatonnes. These balls have 4,118 pebbles each with a diameter of 2.5 mm
It's about one-one-hundredth as heavy as an Elephant
In other words, 0.0000000540 megatonnes is 0.0089 times the weight of an Elephant, and the weight of an Elephant is 110 times that amount.(for African bush elephant, Loxodonta africana) (Adult, bull)
A bull African bush elephant weighs about 0.00000610 megatonnes. Among African elephants, both males and females have tusks (whereas female Asian elephants, Elephas maximus, do not have tusks) which can grow to 3 m (10 ft) and typically weigh about 0.00000400 megatonnes
It's about one-one-hundredth as heavy as a Tyrannosaurus rex
In other words, 0.0000000540 megatonnes is 0.0084 times the weight of a Tyrannosaurus rex, and the weight of a Tyrannosaurus rex is 120 times that amount.(for FMNH PR2081, a.k.a. "Sue") (a.k.a. Tyrannosaurus, a.k.a. T-Rex) (estimated live weight)
The notable Tyrannosaurus specimen housed at the Field Museum of Natural History in Chicago, Illinois, "Sue," is estimated to have weighed about 0.00000640 megatonnes while alive. A renowned predator in popular culture, the teeth of tyrannosaurus rex were up to 33.02 cm (13 in) long.
It's about 150 times as heavy as a Football (Soccer)
In other words, the weight of a Football (Soccer) is 0.0077 times 0.0000000540 megatonnes.(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 0.000000000410 megatonnes and 0.000000000450 megatonnes. 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 150 times as heavy as a Football (American)
In other words, 0.0000000540 megatonnes is 131.36509967430 times the weight of a Football (American), and the weight of a Football (American) is 0.007612371950231 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.000000000396893323750 megatonnes and 0.0000000004252428468750 megatonnes. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
It's about 150 times as heavy as a Can of Soup
In other words, the weight of a Can of Soup is 0.0067 times 0.0000000540 megatonnes.(for Campbell''s Condensed Tomato Soup, 317.9 ml)
A can of Campbell''s Tomato Soup weighs 0.000000000350 megatonnes. Cans have been used to store soup and other foods since their invention in 1913, but a dedicated can opener was not developed until cans began to use thinner materials — prior to that time, cans were usually opened using various blunt instruments and tools.