It's about 0.0000007 times as heavy as The Space Shuttle.
In other words, 45.930 grams is 0.000000650 times the weight of The Space Shuttle, and the weight of The Space Shuttle is 1,500,000 times that amount.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 71,000,000 grams. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 20,000,000 grams.
It's about one-two-hundred-fifty-thousandth as heavy as an Anchor of a Cruise Ship.
In other words, 45.930 grams is 0.000004060 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 246,000 times that amount.(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
Each of the forward anchors of the RMS Queen Elizabeth 2 weighs 11,300,000 grams. The anchor of the QE2 now sits in front of the Holyrood Church in Southampton, England, United Kingdom, along a pedestrian tourist route known as "the QE2 mile."
It's about one-one-hundred-fifty-thousandth as heavy as a Tyrannosaurus rex.
In other words, the weight of a Tyrannosaurus rex is 140,000 times 45.930 grams.(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 6,400,000 grams 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 one-one-hundred-fifty-thousandth as heavy as an Elephant.
In other words, the weight of an Elephant is 130,000 times 45.930 grams.(for African bush elephant, Loxodonta africana) (Adult, bull)
A bull African bush elephant weighs about 6,100,000 grams. 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 4,000,000 grams
It's about one-eighty-thousandth as heavy as a Hippopotamus.
In other words, 45.930 grams is 0.00001220 times the weight of a Hippopotamus, and the weight of a Hippopotamus is 82,000 times that amount.(Hippopotamus amphibius) (adult, male)
The average weight of an adult male hippopotamus ranges from 3,750,000 grams. 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 one-sixty-thousandth as heavy as The Tongue of a Blue Whale.
In other words, the weight of The Tongue of a Blue Whale is 59,000 times 45.930 grams.(Balaenoptera musculus) (adult)
The tongue of a Blue Whale can weigh up to 2,700,000 grams. Despite their tremendous size, blue whales feed almost exclusively on tiny crustaceans called krill and cannot swallow anything much larger than a beach ball.
It's about one-forty-five-thousandth as heavy as a Rhinoceros.
In other words, the weight of a Rhinoceros is 45,000 times 45.930 grams.(for Black rhinoceros, Diceros bicornis) (Adult, male)
An adult black rhinoceros weighs between 2,100,000 grams. Rhinoceros are extremely aggressive — nearly one of every two males will die as a result of fighting with other rhinoceros.