It's about 5,500 times as heavy as a Quarter
In other words, 0.0000000300 megatonnes is 5,291 times the weight of a Quarter, and the weight of a Quarter is 0.000189 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 0.000000000005670 megatonnes each. In answer to the common riddle, there are 119 ridges around the edge of the coin in its current design.
It's about 6,000 times as heavy as a sheet of Paper
In other words, the weight of a sheet of Paper is 0.00017 times 0.0000000300 megatonnes.(for US Letter, a.k.a. ANSI A; 215.9mm by 279.4mm (8.5 in x 11 in); 20lb)
The weight of a ream (500 sheets) of 0.00000000910 megatonnes, 8.5 inch x 11 inch paper is 0.00000000200 megatonnes, each sheet weighing 0.00000000000500 megatonnes. Paper of this size has a thickness of 0.004 caliper (0.1 mm).
It's about 7,500 times as heavy as a Die (Dice)
In other words, the weight of a Die (Dice) is 0.00014 times 0.0000000300 megatonnes.(for six-sided, 16 mm, rounded cube)
A die, of the size most commonly used in board games and casinos, typically weight 0.00000000000410 megatonnes. 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 10,000 times as heavy as a Penny
In other words, 0.0000000300 megatonnes is 12,000 times the weight of a Penny, and the weight of a Penny is 0.0000830 times that amount.(United States) (formally one-cent coin) (Union shield design, 2010-present)
The weight of a United States penny is 0.00000000000250 megatonnes. 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 15,000 times as heavy as a Playing Card
In other words, the weight of a Playing Card is 0.0000590 times 0.0000000300 megatonnes.(ISO 216 B8 size, 2.5" x 3.5")
A single ISO 216 B8-size playing card weighs 0.00000000000180 megatonnes. 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 20,000 times as heavy as a Paper Clip
In other words, 0.0000000300 megatonnes is 21,000 times the weight of a Paper Clip, and the weight of a Paper Clip is 0.0000480 times that amount.(average)
Notwithstanding the tremendous variation in sizes and materials, a typical paperclip weighs about 0.00000000000140 megatonnes. 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-twenty-thousandth as heavy as Christ the Redeemer (statue)
In other words, 0.0000000300 megatonnes is 0.00004720 times the weight of Christ the Redeemer (statue), and the weight of Christ the Redeemer (statue) is 21,200 times that amount.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 0.000635 megatonnes. The statue overlooks the city of Rio de Janeiro from atop the 709.9-meter (2,329 ft) granite peak in the Tijuca Forest National Park.