It's about as tall as The Statue of Liberty.
In other words, the height of The Statue of Liberty is 1.05 times 581 shaftments.(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 610.2 shaftments 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 nine-tenths as tall as Big Ben.
In other words, 581 shaftments is 0.92 times the height of Big Ben, and the height of Big Ben is 1.1 times that amount.
It's about four-fifths as long as a Football (Soccer) Pitch.
In other words, 581 shaftments is 0.843 times the length of a Football (Soccer) Pitch, and the length of a Football (Soccer) Pitch is 1.19 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 689 shaftments (when the Laws were originally, they used imperial measurements of 690 shaftments, 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 one-and-one-fifth times as tall as a Giant Sequoia (tree).
In other words, the height of a Giant Sequoia (tree) is 0.83 times 581 shaftments.(a.k.a. Sequoiadendron giganteum, a.k.a. Sierra redwood, a.k.a. Wellingtonia)
It's about four-fifths as long as a Football field.
In other words, 581 shaftments is 0.806944 times the length of a Football field, and the length of a Football field is 1.23924 times that amount.(American) (total distance; per NFL regulation)
It's about four-fifths as tall as St. Paul's Cathedral.
In other words, 581 shaftments is 0.7955 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 1.257 times that amount.(London, England, United Kingdom)
It's about one-and-three-tenths times as long as The Wingspan of a 747.
In other words, 581 shaftments is 1.29 times the length of The Wingspan of a 747, and the length of The Wingspan of a 747 is 0.775 times that amount.(a.k.a. Boeing 747, a.k.a. Jumbo Jet, a.k.a. Queen of the Skies) (for Boeing 747-8 series)