It's about 700,000 times as long as a Red Blood Cell.
In other words, 510 centimeters is 680,000 times the length of a Red Blood Cell, and the length of a Red Blood Cell is 0.0000015 times that amount.(a.k.a. RBCs, a.k.a. haematids, a.k.a. erythrocyte, a.k.a. erythroid cells, a.k.a. red blood corpuscles) An average Red Blood Cell measures 7.5 µm (micrometers) in diameter. An average human has 20 - 30 trillion red blood cells in their body and each cell completes a circulatory lap in about 20 seconds.
It's about one-seven-hundred-thousandth as long as The Oregon Trail.
In other words, 510 centimeters is 0.00000146 times the length of The Oregon Trail, and the length of The Oregon Trail is 685,000 times that amount.(from Independence, Missouri to Oregon City, Oregon)
The historic Oregon Trail stretched 349,000,000 centimeters across five (sometimes six) states in the western United States. In the early years of the Trail's existence, the trip was estimated to have taken an average of 160 days.
It's about one-seven-hundred-thousandth as long as The Volga.
In other words, 510 centimeters is 0.00000144 times the length of The Volga, and the length of The Volga is 694,000 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 353,000,000 centimeters 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 one-seven-hundred-fifty-thousandth as long as The Mississippi River.
In other words, 510 centimeters is 0.000001354 times the length of The Mississippi River, and the length of The Mississippi River is 738,600 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 376,600,000 centimeters. 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 850,000 times as long as a Nucleus (Cellular).
In other words, the length of a Nucleus (Cellular) is 0.0000012 times 510 centimeters.(for animal cell)
The nucleus of an animal cell measures an average of 0.0006 centimeters. The nucleus is the largest organelle in these cells, accounting for about 10% of the cell's total volume.
It's about one-nine-hundred-thousandth as long as The Distance from L.A. to New York.
In other words, 510 centimeters is 0.00000114 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 877,000 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 449,000,000 centimeters 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-nine-hundred-thousandth as long as I-80.
In other words, 510 centimeters is 0.0000010996 times the length of I-80, and the length of I-80 is 909,422 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 463,803,000 centimeters. A 6,000,000 centimeters 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.