It's about 15,000 times as heavy as The Heart of a Blue Whale
In other words, the weight of The Heart of a Blue Whale is 0.0000710 times 0.00273 megatonnes.(Balaenoptera musculus) (adult)
(for a 2014 specimen)
The heart of a blue whale weighs about 0.000000200 megatonnes. These hearts pump an estimated 7,100 L (1,875 gal) of blood through the whale's massive body.
It's about 15,000 times as heavy as a Reindeer
In other words, 0.00273 megatonnes is 16,500 times the weight of a Reindeer, and the weight of a Reindeer is 0.00006060 times that amount.(for Rangifer tarandus granti, adult, bull) (a.k.a. Caribou) ()Rangifer tarandus)
An adult, male reindeer weighs between 0.0000001660 megatonnes. Reindeer undertake a lengthy annual migration, with some herds traveling up to 5,000 km.
To all those observing, Merry Christmas from the Measure of Things.
It's about 20,000 times as heavy as a Panda Bear
In other words, 0.00273 megatonnes is 18,000 times the weight of a Panda Bear, and the weight of a Panda Bear is 0.0000560 times that amount.(a.k.a. Giant Panda, Ailuropoda melanoleuca)(Adult, male)
An adult, male Giant Panda weighs up to 0.000000150 megatonnes. Despite having the digestive system of a carnivore, the panda eats only bamboo and must eat up to 0.00000000640 megatonnes of it per day to compensate for the limited energy the plant provides.
It's about 30,000 times as heavy as a Kangaroo
In other words, 0.00273 megatonnes is 32,000 times the weight of a Kangaroo, and the weight of a Kangaroo is 0.0000310 times that amount.(for red kangaroo, Macropus rufus) (adult, male)
An adult, male red kangaroo weighs up to 0.0000000850 megatonnes. Fantastic jumpers, red kangaroos can leap horizontally 9 m (30 ft) and vertically 3 m (9 ft) in a single bound.
It's about 40,000 times as heavy as a Beer Keg
In other words, 0.00273 megatonnes is 37,500 times the weight of a Beer Keg, and the weight of a Beer Keg is 0.000026670 times that amount.(for US half-barrel, full keg; draft beer; including keg itself, stainless steel)
A typical, half-barrel beer keg weighs 0.00000007280 megatonnes when full. A keg of this size contains 15.5 gallons of beer, or the equivalent of 6.8 cases.
It's about 55,000 times as heavy as an Octopus
In other words, the weight of an Octopus is 0.0000180 times 0.00273 megatonnes.(for Giant Pacific Octopus, Enteroctopus) (Adult, average)
The adult North Pacific Giant Octopus usually weighs around 0.0000000500 megatonnes. It is the largest octopus species and is known for its considerable intelligence, including the ability to open jars, solve mazes, and mimic other octopuses.
It's about 65,000 times as heavy as a Toilet
In other words, 0.00273 megatonnes is 62,600 times the weight of a Toilet, and the weight of a Toilet is 0.0000160 times that amount.(KOHLER Round front sitting flush toilet, model #K-11471-0)
The weight of a typical round front sitting flush toilet is 0.00000004360 megatonnes. The Indian town of Musiri in Tamil Nadu state features the world's only paying toilet, which rewards its users up to 10¢ Indian (10 paisas) per visit and uses the waste for compost and fertilizer.