It's about one-one-thousandth as heavy as a Grain of Salt.
In other words, 58 nanograms is 0.000991 times the weight of a Grain of Salt, and the weight of a Grain of Salt is 1,010 times that amount.
It's about one-five-thousand-five-hundredth as heavy as a Poppy Seed.
In other words, the weight of a Poppy Seed is 5,300 times 58 nanograms.(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-ten-thousandth as heavy as a Grain of Sugar.
In other words, 58 nanograms is 0.0000928 times the weight of a Grain of Sugar, and the weight of a Grain of Sugar is 10,800 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)
It's about one-sixty-five-thousandth as heavy as a Sesame Seed.
In other words, the weight of a Sesame Seed is 62,900 times 58 nanograms.(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 2,010,000,000,000,000.0 nanograms of sesame seeds each day.
It's about one-seventy-five-thousandth as heavy as a Grain of Sand.
In other words, the weight of a Grain of Sand is 77,000 times 58 nanograms.(medium grain)
It's about one-five-hundred-thousandth as heavy as a Grain of Rice.
In other words, 58 nanograms is 0.000002 times the weight of a Grain of Rice, and the weight of a Grain of Rice is 500,000 times that amount.(long grain; 14% moisture content)
It's about 0.0000003 times as heavy as a Raindrop.
In other words, 58 nanograms is 0.0000003 times the weight of a Raindrop, and the weight of a Raindrop is 3,000,000 times that amount.(a.k.a. drop, a.k.a. droplet) (average)