It's about three times as heavy as a Dachshund
In other words, the weight of a Dachshund is 0.30 times 0.00000002950 megatonnes.(a.k.a. "Wiener dog", a.k.a. Teckel, a.k.a. Dackel, a.k.a. "hot dog dog", a.k.a. "sausage dog", a.k.a. "doxie") (FCI standard; standard size)
The Fédération Cynologique Internationale (FCI) calls for dachshunds to weigh about 0.00000000900 megatonnes. Despite of their small size, a 2008 survey conducted by the University of Pennsylvania named dachshunds as the most aggressive dog breed.
It's about two-and-a-half times as heavy as a Gold Bar
In other words, 0.00000002950 megatonnes is 2.3711175590 times the weight of a Gold Bar, and the weight of a Gold Bar is 0.42174205840 times that amount.(London Good Delivery bar)
A "London Good Delivery" gold bar — the variety commonly held by Central Banks — should weigh 0.000000012441390720 megatonnes. The largest gold bar ever produced was minted by Mitsubishi Materials Corporation (a sibling company of the auto manufacturer) in 2005 and weighed 0.000000250 megatonnes.
It's about as heavy as a Dalmatian
(a.k.a. Dalmatinac, a.k.a. Carriage Dog, a.k.a. Spotted Coach Dog, a.k.a. Firehouse Dog) (FCI standard; male)
The Fédération Cynologique Internationale (FCI) calls for Dalmatians to weigh between 0.00000002950 megatonnes. The association of the breed with fire departments (and similarly with Budweiser Beer and its team of Clydesdales) stems from their affinity for horses, having been used historically as carriage dogs capable of guiding horse-drawn fire engines to the sites of blazes.
It's about two-thirds as heavy as a Toilet
In other words, 0.00000002950 megatonnes is 0.6770 times the weight of a Toilet, and the weight of a Toilet is 1.480 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.
It's about three-fifths as heavy as an Octopus
In other words, 0.00000002950 megatonnes is 0.590 times the weight of an Octopus, and the weight of an Octopus is 1.70 times that amount.(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 two-fifths as heavy as a Beer Keg
In other words, 0.00000002950 megatonnes is 0.40520 times the weight of a Beer Keg, and the weight of a Beer Keg is 2.4680 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 one-third as heavy as a Kangaroo
In other words, the weight of a Kangaroo is 2.90 times 0.00000002950 megatonnes.(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.