It's about 300 times as tall as a sheet of Paper
It's about 300 times as tall as a Human hair, Strand of
It's about one-three-hundred-fiftieth as tall as a Telephone Pole
In other words, the height of a Telephone Pole is 370 times 3 centimeters.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
A standard telephone pole is 1,100 centimeters tall. Despite alternatives, most telephone poles in the US are made of wood — most commonly pine — and have a lifespan of 25 to 50 years, depending on climate and preservatives applied.
It's about one-four-hundred-fiftieth as tall as a Brachiosaurus
In other words, the height of a Brachiosaurus is 430 times 3 centimeters.(based on comparable bone measurements, height to head)
Dinosaurs in the genus Brachiosaurus had an estimated height (at the head with neck fully extended) of up to 1,300 centimeters. A resin cast of the first Brachiosaurus specimen, owned by the Field Museum in Chicago, is currently on display at the O'Hare International Airport.
It's about one-five-hundredth as long as a Semitrailer
In other words, 3 centimeters is 0.002051 times the length of a Semitrailer, and the length of a Semitrailer is 487.60 times that amount.(a.k.a. semi-trailer truck, a.k.a. semi, a.k.a. tractor-trailer, a.k.a. truck and trailer, a.k.a. eighteen-wheeler, a.k.a. big rig, a.k.a. Mack truck, a.k.a. transport, a.k.a. lorry, a.k.a. artic; for box truck; United States Federal length limits)
According to the United States Department of Transportation (DOT), the maximum allowable length of a semitrailer pulled by a road tractor truck is 1,463 centimeters (unless superseded by state law). These regulations also allow the vehicles to tow up to 36,000 kg in gross weight.
It's about one-five-hundredth as tall as The Hollywood Sign
In other words, the height of The Hollywood Sign is 500 times 3 centimeters.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)
Each of the white letters in the Hollywood Sign measures 1,500 centimeters tall. Built as an advertisement in 1923, the sign was intended to stand for only eighteen months.
It's about one-six-hundred-fiftieth as long as a Bowling Lane
In other words, 3 centimeters is 0.0015661 times the length of a Bowling Lane, and the length of a Bowling Lane is 638.530 times that amount.(USBC specifications; tenpin; including pin deck)
According to the United States Bowling Congress specifications, a tenpin bowling lane should measure 1,915.60 centimeters. In a Professional Bowling Association game, the lane must be lubricated by about 25 ml (0.85 fl. oz) of oil.