It's about 850,000,000 times as heavy as a Grain of Sugar.
In other words, 521 kilograms is 834,000,000 times the weight of a Grain of Sugar, and the weight of a Grain of Sugar is 0.00000000120 times that amount.(a.k.a. white sugar, a.k.a. white refined sugar, a.k.a. table sugar, a.k.a. sucrose, a.k.a. saccharose)
A grain of sugar weighs approximately 0.0000006250 kilograms. Sugar consumption varies widely by country; the average citizen of the United States consumes about 61.2 kg of sugar each year.
It's about 1,500,000,000 times as heavy as a Poppy Seed.
In other words, the weight of a Poppy Seed is 0.000000000590 times 521 kilograms.(Papaver somniferum)
Fifty percent oil by weight, a poppy seed weighs approximately 0.000000300 kilograms. The true pigment of a poppy seed is brown in color, while the characteristic bluish color is an optical illusion caused by a layer of calcium oxalate crystals refracting light rays.
It's about 9,000,000,000 times as heavy as a Grain of Salt.
In other words, 521 kilograms is 8,910,000,000 times the weight of a Grain of Salt, and the weight of a Grain of Salt is 0.0000000001120 times that amount.The mass of a grain of salt is approximately 0.00000005850 kilograms. Salt consumption varies widely by country; the people of the United States consume a combined total of about 2,730,000 kilograms of salt each year.
It's about 0.0000000000000000000000000003 times as heavy as The Sun.
In other words, 521 kilograms is 0.000000000000000000000000000260 times the weight of The Sun, and the weight of The Sun is 3,800,000,000,000,000,215,419,453,440.000000000000000000000000000000 times that amount.The sun has a mass of 2,000,000,000,000,000,179,380,838,125,797,376.000000000000000000000000000000000000 kilograms which represents 99.9% of the solar system's total mass. 98.7% of the sun's mass consists of hydrogen and helium — respectively the lightest and second-lightest elements in the universe.
It's about 0.00000000000000000000009 times as heavy as The Earth.
In other words, 521 kilograms is 0.0000000000000000000000872170 times the weight of The Earth, and the weight of The Earth is 11,465,999,999,999,999,475,712.0000000000000000000000000000 times that amount.The mass of the planet Earth is 5,973,599,999,999,999,505,072,128.000000000000000000000000000000 kilograms. The element iron makes up about 32% of that mass, or 1,917,499,999,999,999,942,328,320.000000000000000000000000000000 kilograms.