It's about one-nine-hundred-fiftieth as long as The Volga.
In other words, 3,800,000,000 microns is 0.00108 times the length of The Volga, and the length of The Volga is 926 times that amount.(a.k.a. Волга, a.k.a. İdel (Идел), a.k.a. Атăл (Atăl), a.k.a. Edil, a.k.a. İdil, a.k.a. Рав (Rav)) (from the Valdai Hills, Tver Oblast, Russia through the Caspian Sea)
The largest river in Europe, the Volga river runs 3,530,000,000,000 microns in total length. World War II's Battle of Stalingrad between the Nazi Germany and the Soviet Union, which resulted in nearly two million casualties, was fought in part for control of the river.
It's about 950 times as long as a Beetle (Volkswagen).
In other words, 3,800,000,000 microns is 931.60 times the length of a Beetle (Volkswagen), and the length of a Beetle (Volkswagen) is 0.001073 times that amount.(1964 model) (a.k.a. Volkswagen 1200, a.k.a. Käfer)
A 1964 Volkswagen Beetle measures 4,079,000 microns. As the longest continuously-produced automobile design — in production for 75 years between 1938 and 2003 — the Beetle was voted the most fourth-most influential car of the twentieth century by the Global Automotive Elections Foundation.
It's about one-one-thousandth as long as The Mississippi River.
In other words, 3,800,000,000 microns is 0.001009 times the length of The Mississippi River, and the length of The Mississippi River is 991.10 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 3,766,000,000,000 microns. Prior to the development of soil erosion programs, the Mississippi River would carry approximately 400 million metric tons of sediment from its banks to the Gulf of Mexico every year.
It's about one-one-thousandth as long as The Distance from L.A. to New York.
In other words, 3,800,000,000 microns is 0.000846 times the length of The Distance from L.A. to New York, and the length of The Distance from L.A. to New York is 1,180 times that amount.(Los Angeles, California to New York City, New York) (via I-10 E, I-15 N, I-70 E, I-76 E, I-80 E, I-280 E)
The total length of the freeway route from Los Angeles, California to New York City, New York via Interstate 80 is 4,490,000,000,000 microns long. This route intersects eleven states and several major cities, including Las Vegas, Nevada; Denver, Colorado; Lincoln, Nebraska; Omaha, Nebraska; Des Moines, Iowa; South Bend, Indiana; and Cleveland, Ohio.
It's about one-one-thousandth as long as I-80.
In other words, 3,800,000,000 microns is 0.000819313 times the length of I-80, and the length of I-80 is 1,220.530 times that amount.(a.k.a. Interstate 80, a.k.a. Keystone Shortway) (net length)
Interstate 80, crosses the continent of North America from Teaneck, New Jersey to San Francisco, California and covers a total length of 4,638,030,000,000 microns. A 60,000,000,000 microns stretch between mile marker 318 in Grand Island, Nebraska and mile marker 390 in Lincoln, Nebraska is the longest straight path in the US Interstate system.
It's about one-one-thousand-five-hundredth as long as The Great Wall of China (wall only).
In other words, 3,800,000,000 microns is 0.0006071 times the length of The Great Wall of China (wall only), and the length of The Great Wall of China (wall only) is 1,647 times that amount.(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (wall segments only)
The Great Wall of China has total wall segment length of 6,259,000,000 microns. Built and maintained in multiple sections over about eleven centuries, the Great Wall is currently suffering the effects of erosion, especially in the older sections made primarily out of mud.
It's about one-one-thousand-five-hundredth as long as The Amazon River.
In other words, 3,800,000,000 microns is 0.0005903 times the length of The Amazon River, and the length of The Amazon River is 1,694 times that amount.(from Nevado Mismi, Arequipa, Peru through near Marajó, Brazil) (approximate distance)
The Amazon River has an approximate distance of 6,437,000,000,000 microns. Although by most measures it is the largest and one of the most significant rivers in the world, the region surrounding the Amazon is mostly sparsely populated and the river itself has no bridges across it at any point.