It's about 35,000 times as long as a Strand of Spaghetti (thickness).
In other words, the length of a Strand of Spaghetti (thickness) is 0.0000300 times 551 hands.(average; restaurant and supermarket applications) (based on FMA Omcan Italian Made TR50 Counter Top Pasta Machine Extruder 13317)
An average strand of restaurant-grade spaghetti measures 0.017 hands in thickness. In 2010, a California Buca di Beppo set a world record by preparing a 13,780-lb bowl of spaghetti, served in a swimming pool.
It's about one-forty-thousandth as long as The Colorado River.
In other words, the length of The Colorado River is 41,700 times 551 hands.(a.k.a. Aha Kwahwat, a.k.a. Grand River, a.k.a. Tizon River, a.k.a. Tecon River, a.k.a. Tison River) (from Grand Lake, Colorado through the Gulf of California)
The Colorado River runs 22,900,000 hands in length. Along this length, the river descends from its source, approximately 27,100 hands above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about 45,000 times as long as a Grain of Sand.
In other words, 551 hands is 44,800 times the length of a Grain of Sand, and the length of a Grain of Sand is 0.00002230 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.0123 hands. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 149 hands in height.
It's about one-fifty-thousandth as long as The Danube.
In other words, 551 hands is 0.00001960 times the length of The Danube, and the length of The Danube is 51,000 times that amount.(a.k.a. Donau, a.k.a. Dunaj, a.k.a. Dunav, a.k.a. Duna, a.k.a. Дунав (Dunav), a.k.a. Dunărea, a.k.a. Дунáй (Dunay), a.k.a. Tuna) (from Breg Martinskapelle, Black Forest, Germany through the Danube Delta, Romania)
The Danube river runs 28,100,000 hands in total length. Intersecting Vienna, Austria; Bratislava, Slovakia; Budapest, Hungary; and Belgrade, Serbia, the Danube touches more capital cities than any other river.
It's about one-sixty-five-thousandth as long as The Oregon Trail.
In other words, the length of The Oregon Trail is 62,500 times 551 hands.(from Independence, Missouri to Oregon City, Oregon)
The historic Oregon Trail stretched 34,400,000 hands 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-sixty-five-thousandth as long as The Volga.
In other words, the length of The Volga is 62,900 times 551 hands.(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 34,700,000 hands 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-sixty-five-thousandth as long as The Mississippi River.
In other words, 551 hands is 0.000014870 times the length of The Mississippi River, and the length of The Mississippi River is 67,250 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 37,070,000 hands. 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.