It's about 400 times as heavy as a Playing Card.
In other words, 454.960 pennyweights is 390 times the weight of a Playing Card, and the weight of a Playing Card is 0.0026 times that amount.(ISO 216 B8 size, 2.5" x 3.5")
A single ISO 216 B8-size playing card weighs 1.20 pennyweights. Although this size is the most common home playing card, many casinos use "bridge size" cards — 2,640 sq. mm (4.036 sq. in) smaller in area.
It's about 500 times as heavy as a Paper Clip.
In other words, the weight of a Paper Clip is 0.002 times 454.960 pennyweights.(average)
Notwithstanding the tremendous variation in sizes and materials, a typical paperclip weighs about 0.90 pennyweights. The country of Norway has used the paper clip as something of a national symbol since the end of World War II based on the erroneous notion that the paperclip was invented by a Norwegian, Johan Vaaler. However, the paperclip had already been in existence for at least 30 years by the time of Vaaler patented his paperclip design.
It's about one-six-hundredth as heavy as a Horse.
In other words, 454.960 pennyweights is 0.0017 times the weight of a Horse, and the weight of a Horse is 590 times that amount.(Equus ferus caballus) (Arabian, adult)
n Arabian riding horse (or similar breed) weighs between 270,000 pennyweights. During races, horses must carry jockeys and their equipment, which in the Kentucky Derby, for example, can weigh up to 35,000 pennyweights.
It's about one-six-hundred-fiftieth as heavy as a Grand Piano.
It's about 650 times as heavy as a Jelly Bean.
In other words, the weight of a Jelly Bean is 0.0016 times 454.960 pennyweights.(for Jelly Belly beans; approximate)
Made of sugar, corn syrup, and pectin, a single jelly bean weighs about 0.730 pennyweights. President Ronald Reagan cited jelly beans as his favorite candy and 2,000,000 pennyweights of the candies were served at his first inauguration in 1981.
It's about one-seven-hundred-fiftieth as heavy as a Polar Bear.
In other words, 454.960 pennyweights is 0.00137 times the weight of a Polar Bear, and the weight of a Polar Bear is 730 times that amount.(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 332,000 pennyweights. 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 one-seven-hundred-fiftieth as heavy as a Grizzly Bear.
In other words, 454.960 pennyweights is 0.00136 times the weight of a Grizzly Bear, and the weight of a Grizzly Bear is 735 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 335,000 pennyweights. In spite of their tremendous size, grizzly bears can run at speeds of up to 55 kph (34 mph).