It's about as heavy as a sheet of Paper.
It's about nine-tenths as heavy as a Quarter.
In other words, 5 grams is 0.88180 times the weight of a Quarter, and the weight of a Quarter is 1.1340 times that amount.(United States quarter-dollar coin) (a.k.a. Quarter dollar, a.k.a. America the Beautiful quarter, a.k.a. two bits)
The America the Beautiful series quarters, which began to enter circulation in 2017, weigh 5.670 g each. In answer to the common riddle, there are 119 ridges around the edge of the coin in its current design.
It's about one-and-one-fifth times as heavy as a Die (Dice).
In other words, the weight of a Die (Dice) is 0.830 times 5 grams.(for six-sided, 16 mm, rounded cube)
A die, of the size most commonly used in board games and casinos, typically weight 4.1 g. The use of dice and dice-like tools predates written history, with the oldest known examples belonging to a 5,000-year old backgammon set uncovered during an archaeological dig in modern-day Iran.
It's about seven-tenths as heavy as an Eye (Human).
It's about two times as heavy as a Penny.
In other words, the weight of a Penny is 0.50 times 5 grams.(United States) (formally one-cent coin) (Union shield design, 2010-present)
The weight of a United States penny is 2.5 g. According to a 2010 report by the United States Mint, the cost of manufacturing and distributing a penny is $0.0179 — more than its face-value.
It's about two-fifths as heavy as a Battery (AAA).
In other words, 5 grams is 0.420 times the weight of a Battery (AAA), and the weight of a Battery (AAA) is 2.40 times that amount.(Alkaline)
An "AAA" size battery weighs 12 g. Batteries are named by the American National Standards Institute (ANSI) Committee C18 and AAA batteries were given their name because they were smaller than the "AA" and "A" size batteries which were invented first.
It's about three times as heavy as a Playing Card.
In other words, 5 grams is 2.80 times the weight of a Playing Card, and the weight of a Playing Card is 0.360 times that amount.(ISO 216 B8 size, 2.5" x 3.5")
A single ISO 216 B8-size playing card weighs 1.8 g. 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.