It's about one-thirty-thousandth as long as The Grand Canyon.
In other words, 1,500 centimeters is 0.0000336 times the length of The Grand Canyon, and the length of The Grand Canyon is 29,800 times that amount.(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
It's about one-ninety-thousandth as long as The Rhine.
In other words, 1,500 centimeters is 0.0000114 times the length of The Rhine, and the length of The Rhine is 87,700 times that amount.(a.k.a. Rhein, a.k.a. Rijn, a.k.a. Rhin, a.k.a. Rain, a.k.a. Reno, a.k.a. Rhenus, a.k.a. Ryn) (from near Reichenau, Switzerland through Hoek van Holland, Rotterdam, Netherlands)
It's about 150,000 times as long as a Strand of Hair.
It's about 150,000 times as tall as a Human hair, Strand of.
In other words, the height of a Human hair, Strand of is 0.0000067 times 1,500 centimeters.(average)
It's about one-one-hundred-fifty-thousandth as long as The Colorado River.
In other words, 1,500 centimeters is 0.00000644 times the length of The Colorado River, and the length of The Colorado River is 155,000 times that amount.(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 233,000,000 centimeters in length. Along this length, the river descends from its source, approximately 275,000 centimeters above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about one-two-hundred-thousandth as long as The Danube.
In other words, 1,500 centimeters is 0.00000526 times the length of The Danube, and the length of The Danube is 190,000 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)