It's about one-four-hundredth as tall as The Eiffel Tower
In other words, 81 centimeters is 0.0025 times the height of The Eiffel Tower, and the height of The Eiffel Tower is 400 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (to flagpole peak)
The Eiffel Tower stands 32,400 centimeters tall, including its flagpole. The Tower is the largest structure in Paris as most other buildings are governed by a zoning restriction limiting them to a height of 3,700 centimeters or less.
It's about one-four-hundred-fiftieth as tall as The Empire State Building
In other words, 81 centimeters is 0.0021259 times the height of The Empire State Building, and the height of The Empire State Building is 470.390 times that amount.(New York City, New York) (to top of building)
The Empire State Building stands 38,101 centimeters to its architectural peak. The spire emerging from the top of the building was originally intended to be a mooring mast for blimps whose passengers could disembark onto a landing platform on the 102
It's about 500 times as long as a Strand of Spaghetti (thickness)
In other words, the length of a Strand of Spaghetti (thickness) is 0.0021 times 81 centimeters.(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 0.170 centimeters 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-five-hundred-fiftieth as tall as The Petronas Twin Towers
In other words, 81 centimeters is 0.001792 times the height of The Petronas Twin Towers, and the height of The Petronas Twin Towers is 558 times that amount.(a.k.a. Menara Berkembar Petronas, a.k.a. Petronas Towers) (Kuala Lumpur, Malaysia) (to spire)
Each of the Petronas Towers stands 45,190 centimeters to their spires. Holding the record as the tallest buildings in the world from 1998 to 2004, the towers continue to hold the record for the deepest foundation barrettes — up to 11,500 centimeters deep.
It's about one-six-hundredth as tall as The Shanghai World Financial Center
In other words, 81 centimeters is 0.00165 times the height of The Shanghai World Financial Center, and the height of The Shanghai World Financial Center is 606 times that amount.(上海环球金融中 上海環球金融中心, Shànghǎi huánqiú jīnróng zhōngxīn) (a.k.a. SWFC) (Shanghai, China) (to spire)
The Shanghai World Financial Center is 49,200 centimeters tall to its roof. It is home to both the world's highest hotel (on its 79th through 93rd floors) and the world's tallest observation deck (on its 100
It's about 650 times as long as a Grain of Sand
In other words, 81 centimeters is 648 times the length of a Grain of Sand, and the length of a Grain of Sand is 0.00154 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.1250 centimeters. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 1,510 centimeters in height.
It's about one-six-hundred-fiftieth as tall as The Ostankino Tower
In other words, the height of The Ostankino Tower is 670 times 81 centimeters.(a.k.a. Останкинская телебашня) (Moscow, Russia) (to spire)
The Ostankino Tower stands 54,000 centimeters to its spire. The tower has been the tallest structure in Europe since its construction in 1967 and was, at at that time, the only free-standing structure taller than 50,000 centimeters.