It's about 1,500 times as tall as The Great Pyramid of Giza.
In other words, the height of The Great Pyramid of Giza is 0.00077 times 813 furlongs.(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt) (estimated original height)
The Great Pyramid of Giza has an estimated original height (without loss due to erosion) of 0.650 furlongs. The Pyramid was the tallest structure in the world for almost 4,000 years — from its construction ca. 2551 BCE until it was overtaken by the Lincoln Cathedral in Lincoln, England, built in the year 1300.
It's about 1,500 times as long as a Football field.
In other words, 813 furlongs is 1,490.50 times the length of a Football field, and the length of a Football field is 0.000670916 times that amount.(American) (total distance; per NFL regulation)
According to NFL specifications, an American football field should measure 0.5454550 furlongs from end to end. Because each team's goalpost is located at the far end of the scoring area (end zone), a ball on a scoring play may need to travel as many as 0.0454545 furlongs farther when kicked into the scoring area than when run (rushed) or passed into it.
It's about 1,500 times as long as a Football (Soccer) Pitch.
In other words, 813 furlongs is 1,560 times the length of a Football (Soccer) Pitch, and the length of a Football (Soccer) Pitch is 0.000641 times that amount.(a.k.a. Football Field, a.k.a. Soccer Field) (field length, a.k.a. touchline distance)
According to the Laws of the Game, a football pitch should measure between 0.5220 furlongs (when the Laws were originally, they used imperial measurements of 0.5230 furlongs, and later converted to the metric units used today). The goal markess were defined as part of the pitch by the original rules of the game in the late 16th century, but it was not until the mid 19th century that the crossbar and the net were added
It's about 1,500 times as tall as Big Ben.
In other words, the height of Big Ben is 0.00059 times 813 furlongs.(officially the clock tower of Palace of Westminster, a.k.a. Houses of Parliament) (London, England)
The clock tower of the Palace of Westminster, which houses the bell known as "Big Ben," rises 0.480 furlongs. The tower has no elevator, and is therefore only accessible by climbing 334 steps to the top.
It's about 2,000 times as tall as The Statue of Liberty.
In other words, 813 furlongs is 1,759 times the height of The Statue of Liberty, and the height of The Statue of Liberty is 0.0005685 times that amount.(a.k.a. "Liberty Enlightening the World," a.k.a. La Liberté Éclairant le Monde) (Liberty Island, New York City, New York) (pedestal base to torch peak)
The Statue of Liberty reaches 0.46230 furlongs including the pedestal. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about 2,000 times as tall as a Giant Sequoia (tree).
In other words, 813 furlongs is 2,200 times the height of a Giant Sequoia (tree), and the height of a Giant Sequoia (tree) is 0.00045 times that amount.(a.k.a. Sequoiadendron giganteum, a.k.a. Sierra redwood, a.k.a. Wellingtonia)
Giant Sequoias of the Giant Sequoia National Monument located in Sierra Nevada, near Visalia, California can grow to heights of 0.380 furlongs. The wood from the Giant Sequoias is often brittle and prone to shattering when such trees are felled, and as a result the trees logged in the late nineteenth century were often usable only as shingles or matchsticks.
It's about one-two-thousand-five-hundredth as long as The Distance from Earth to the Moon.
In other words, 813 furlongs is 0.0004254268 times the length of The Distance from Earth to the Moon, and the length of The Distance from Earth to the Moon is 2,350.5810 times that amount.(a.k.a. Luna) (median of semi-major axis, or apigee, and semi-minor axes, or perigee)
The orbit of the Moon around the Earth is elliptical, with an average distance of 1,911,022 furlongs from center-to-center. About 428.376 kg of moon rock have been cataloged on the Earth, from the American Apollo and Soviet Luna Programs, and from samples that have been extracted from meteorites.