It's about 1,500,000 times as heavy as a Paper Clip
In other words, 29,800,000 grains is 1,400,000 times the weight of a Paper Clip, and the weight of a Paper Clip is 0.00000071 times that amount.(average)
Notwithstanding the tremendous variation in sizes and materials, a typical paperclip weighs about 22 grains. The country of Norway has used the paper clip as something of a national symbol since the end of World War II based on the erroneous notion that the paperclip was invented by a Norwegian, Johan Vaaler. However, the paperclip had already been in existence for at least 30 years by the time of Vaaler patented his paperclip design.
It's about 2,000,000 times as heavy as a Jelly Bean
In other words, 29,800,000 grains is 1,800,000 times the weight of a Jelly Bean, and the weight of a Jelly Bean is 0.00000056 times that amount.(for Jelly Belly beans; approximate)
Made of sugar, corn syrup, and pectin, a single jelly bean weighs about 18 grains. President Ronald Reagan cited jelly beans as his favorite candy and 49,000,000 grains of the candies were served at his first inauguration in 1981.
It's about 2,500,000 times as heavy as a Nail
In other words, 29,800,000 grains is 2,400,000 times the weight of a Nail, and the weight of a Nail is 0.00000042 times that amount.(for 15-gauge, 2-inch, finishing nails)
A two-inch finishing nail weighs 12 grains. Nails have been in use for more than 5,400 years and were ven used as a medium of exchange in ancient times.
It's about 0.0000004 times as heavy as The Great Pyramid of Giza
In other words, 29,800,000 grains is 0.00000033 times the weight of The Great Pyramid of Giza, and the weight of The Great Pyramid of Giza is 3,000,000 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 91,000,000,000,000 grains. The 2,300,000 stones used in the construction of the pyramid weighed an average 35,000,000 grains and were quarried from distances of up to 805 km (500 mi) away.
It's about 10,000,000 times as heavy as a Raindrop
In other words, 29,800,000 grains is 10,000,000 times the weight of a Raindrop, and the weight of a Raindrop is 0.000000100 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 3 grains. 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.
It's about 90,000,000 times as heavy as a Grain of Rice
In other words, 29,800,000 grains is 92,000,000 times the weight of a Grain of Rice, and the weight of a Grain of Rice is 0.000000011 times that amount.(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 0.320 grains 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 450,000,000 times as heavy as a Grain of Sand
In other words, 29,800,000 grains is 440,000,000 times the weight of a Grain of Sand, and the weight of a Grain of Sand is 0.0000000023 times that amount.(medium grain)
With tremendous variety in the size of grain and the component material, grains of sand weigh an average of 0.068 grains. 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.