It's about one-sixty-fifth as heavy as a Grain of Salt
In other words, the weight of a Grain of Salt is 63.30 times 923 nanograms.The mass of a grain of salt is approximately 58,500 nanograms. Salt consumption varies widely by country; the people of the United States consume a combined total of about 57,000,000,000,000,000,000.0000000000000000000000 nanograms of salt each year.
It's about one-three-hundredth as heavy as a Poppy Seed
In other words, 923 nanograms is 0.0031 times the weight of a Poppy Seed, and the weight of a Poppy Seed is 320 times that amount.(Papaver somniferum)
Fifty percent oil by weight, a poppy seed weighs approximately 300,000 nanograms. 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 one-seven-hundredth as heavy as a Grain of Sugar
In other words, 923 nanograms is 0.00148 times the weight of a Grain of Sugar, and the weight of a Grain of Sugar is 676 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 625,000 nanograms. Sugar consumption varies widely by country; the average citizen of the United States consumes about 61,200,000,000,000 nanograms of sugar each year.
It's about one-four-thousandth as heavy as a Sesame Seed
In other words, 923 nanograms is 0.000254 times the weight of a Sesame Seed, and the weight of a Sesame Seed is 3,940 times that amount.(Sesamum indicum)
A sesame seed weighs approximately 3,640,000 nanograms. The McDonald's Big Mac sandwich, which is well-known for its sesame seed top bun, accounts for the consumption of an estimated 2,010,000,000,000,000.0000000000000000000 nanograms of sesame seeds each day.
It's about one-five-thousandth as heavy as a Grain of Sand
In other words, 923 nanograms is 0.00021 times the weight of a Grain of Sand, and the weight of a Grain of Sand is 4,800 times that amount.(medium grain)
With tremendous variety in the size of grain and the component material, grains of sand weigh an average of 4,400,000 nanograms. 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-twenty-five-thousandth as heavy as a Grain of Rice
In other words, the weight of a Grain of Rice is 23,000 times 923 nanograms.(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 21,000,000 nanograms 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-two-hundred-thousandth as heavy as a Raindrop
In other words, 923 nanograms is 0.00000500 times the weight of a Raindrop, and the weight of a Raindrop is 200,000 times that amount.(a.k.a. drop, a.k.a. droplet) (average)
The weight of a raindrop depends heavily on the type of weather, but averages about 200,000,000 nanograms. 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.