It's about five times as heavy as a Grain of Salt
In other words, 0.000000300 kilograms is 5.130 times the weight of a Grain of Salt, and the weight of a Grain of Salt is 0.1950 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 57,000,000 kilograms of salt each year.
It's about as heavy as a Poppy Seed
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 half as heavy as a Grain of Sugar
In other words, 0.000000300 kilograms is 0.480 times the weight of a Grain of Sugar, and the weight of a Grain of Sugar is 2.08 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 one-tenth as heavy as a Sesame Seed
In other words, 0.000000300 kilograms is 0.0824 times the weight of a Sesame Seed, and the weight of a Sesame Seed is 12.10 times that amount.(Sesamum indicum)
A sesame seed weighs approximately 0.000003640 kilograms. The McDonald's Big Mac sandwich, which is well-known for its sesame seed top bun, accounts for the consumption of an estimated 2,009.32 kg of sesame seeds each day.
It's about one-fifteenth as heavy as a Grain of Sand
In other words, the weight of a Grain of Sand is 15 times 0.000000300 kilograms.(medium grain)
With tremendous variety in the size of grain and the component material, grains of sand weigh an average of 0.00000440 kilograms. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 15.10 m (49.55 ft) in height.
It's about one-seventieth as heavy as a Grain of Rice
In other words, the weight of a Grain of Rice is 71 times 0.000000300 kilograms.(conventional; US; long-, medium-, and short-gran varieties; uncooked)
With great differences in variety, the average among a sampling of common short-, medium- and long-grain rices finds that a single grain weighs about 0.0000210 kilograms before cooking. A staple through most of human history, archaeological evidence indicates that the earliest rice cultivation was about 11,500 years ago.
It's about one-five-hundredth as heavy as a Raindrop
In other words, the weight of a Raindrop is 500 times 0.000000300 kilograms.(a.k.a. drop, a.k.a. droplet) (average)
The weight of a raindrop depends heavily on the type of weather, but averages about 0.0002 kilograms. The familiar teardrop shape of a raindrop is actually an optical illusion, caused by the reflection of the light and the motion of the drop.