It's about 0.000000009 times as heavy as The Great Pyramid of Giza
In other words, 50 kilograms is 0.00000000850 times the weight of The Great Pyramid of Giza, and the weight of The Great Pyramid of Giza is 120,000,000 times that amount.(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt)
The Great Pyramid of Giza has an estimated mass of 5,900,000,000 kilograms. The 2,300,000 stones used in the construction of the pyramid weighed an average 2,300 kilograms and were quarried from distances of up to 805 km (500 mi) away.
It's about 150,000,000 times as heavy as a Poppy Seed
In other words, the weight of a Poppy Seed is 0.00000000590 times 50 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 850,000,000 times as heavy as a Grain of Salt
In other words, 50 kilograms is 855,000,000 times the weight of a Grain of Salt, and the weight of a Grain of Salt is 0.000000001170 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 0.00000000000000000000000000003 times as heavy as The Sun
In other words, 50 kilograms is 0.0000000000000000000000000000250 times the weight of The Sun, and the weight of The Sun is 39,999,999,999,999,998,332,478,947,328.0000000000000000000000000000000 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 0.000000000000000000000009 times as heavy as The Earth
In other words, 50 kilograms is 0.00000000000000000000000837020 times the weight of The Earth, and the weight of The Earth is 119,470,000,000,000,000,524,288.00000000000000000000000000000 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.