It's about one-third as heavy as an Anchor of a Cruise Ship.
In other words, 3,750,000 grams is 0.3320 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 3.01 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 five-and-a-half times as heavy as a Cow.
In other words, the weight of a Cow is 0.180 times 3,750,000 grams.(for Holstein, a.k.a. Holstein Friesian, a.k.a. Friesian, Bos primigenius) (adult, heifer)
A mature Holstein cow (the well-known black-and-white, spotted breed of cow) typically weighs 680,000 grams. President William Howard Taft (1909 - 1913) kept a Holstein cow named Pauline Wayne on the White House grounds — a gift from a Wisconsin senator and the source of the First Family's milk.
It's about seven times as heavy as a Grizzly Bear.
In other words, 3,750,000 grams is 7.20 times the weight of a Grizzly Bear, and the weight of a Grizzly Bear is 0.1390 times that amount.(a.k.a. brown bear, a.k.a. silver bear, Ursus arctos horribilis) (Adult, male, coastal area population average)
An adult, male grizzly bear from a coastal area (where food is plentiful) can weigh up to 521,000 grams. In spite of their tremendous size, grizzly bears can run at speeds of up to 55 kph (34 mph).
It's about seven-and-a-half times as heavy as a Polar Bear.
In other words, 3,750,000 grams is 7.270 times the weight of a Polar Bear, and the weight of a Polar Bear is 0.1380 times that amount.(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 516,000 grams. Polar bears are so heavily insulated by their 9.9 cm (3.9 in) layer of blubber that they are often difficult to detect using infrared photography sensors.
It's about eight-and-a-half times as heavy as a Grand Piano.
It's about nine times as heavy as a Horse.
In other words, 3,750,000 grams is 8.90 times the weight of a Horse, and the weight of a Horse is 0.110 times that amount.(Equus ferus caballus) (Arabian, adult)
n Arabian riding horse (or similar breed) weighs between 420,000 grams. During races, horses must carry jockeys and their equipment, which in the Kentucky Derby, for example, can weigh up to 54,000 grams.
It's about fifteen times as heavy as a Pig.
In other words, the weight of a Pig is 0.067 times 3,750,000 grams.(Domestic pig, Sus scrofa domesticus, a.k.a. S. domesticus) (adult)
Domestic pigs weigh between 250,000 grams. The titular character "Babe the pig" in the 1995 family film was played by 48 different American Yorkshire piglets due to the length of filming and the rate at which piglets reach adulthood.