It's about one-one-hundredth as heavy as a Grizzly Bear
In other words, 5 kilograms is 0.010 times the weight of a Grizzly Bear, and the weight of a Grizzly Bear is 104 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 kg. In spite of their tremendous size, grizzly bears can run at speeds of up to 55 kph (34 mph).
It's about 100 times as heavy as a Golf Ball
In other words, 5 kilograms is 108.9 times the weight of a Golf Ball, and the weight of a Golf Ball is 0.00918 times that amount.(per R&A USGA Rules of Golf; maximum rule weight)
According to the Rules of Golf (as approved by the United States Golf Association and the Rules Committee of the Royal and Ancient Golf Club of Saint Andrews), golf balls must weigh no more than 0.04593 kilograms. Golf balls are not required to have the familiar dimpled pattern, but the design has been popular since its invention in 1905 because it reduces drag while increasing lift.
It's about one-one-hundred-fiftieth as heavy as a Cow
In other words, 5 kilograms is 0.007 times the weight of a Cow, and the weight of a Cow is 140 times that amount.(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 kg. 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 150 times as heavy as a Light Bulb
In other words, 5 kilograms is 150 times the weight of a Light Bulb, and the weight of a Light Bulb is 0.007 times that amount.(a.k.a. lamp) (for A19-size, 60w, incandescent bulb by Bulbrite; package weight)
A standard, sixty-watt light bulb weighs about 0.034 kilograms. The tightly-coiled filament inside a bulb of this size would measure about 579mm if uncoiled and stretched out.
It's about 200 times as heavy as a Battery (AA)
In other words, 5 kilograms is 210 times the weight of a Battery (AA), and the weight of a Battery (AA) is 0.005 times that amount.(Alkaline)
An "AA" size battery weighs 0.024 kilograms. AA batteries came into common use during World War II and were given their name by the American National Standards Institute (ANSI) Committee C18 because they were smaller than the "A" size batteries which were invented first.
It's about 250 times as heavy as a Mouse
In other words, 5 kilograms is 240 times the weight of a Mouse, and the weight of a Mouse is 0.004 times that amount.(a.k.a. "House mouse", Mus musculus) (adult)
The weight of a mouse is typically an average of 0.021 kilograms. While most mice typically live two to three years, the Methuselah Mouse Prize — an award administered by a non-profit organization which advances aging-related research — was once awarded to a team of scientists whose research resulted in a mouse living just under five years.
It's about 350 times as heavy as a Compact disc
In other words, 5 kilograms is 330 times the weight of a Compact disc, and the weight of a Compact disc is 0.00 times that amount.(a.k.a. CD)
A compact disc typically weighs 0.015 kilograms. Data is stored on CDs by encoding into the track a series of tiny pits — each between 3.5 and 850 µm (0.00014 and 0.033 in) in length.