It's about one-three-thousandth as long as The Distance from Earth to the Moon.
In other words, 120 kilometers is 0.0003121452 times the length of The Distance from Earth to the Moon, and the length of The Distance from Earth to the Moon is 3,203.6370 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 384,436.5 km 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.
It's about 4,500 times as long as Baseball base distances.
In other words, 120 kilometers is 4,374.50 times the length of Baseball base distances, and the length of Baseball base distances is 0.0002286 times that amount.(MLB Official Baseball Rules specification)
According to MLB Official Baseball Rules, the distance between baseball diamond bases is 0.027432 kilometers. While second and home base are located upon the corners of the 27.432 sq. m area created by the bases, first and third base are placed within that square, to better allow the umpires to judge whether a ball is fair or foul.
It's about 6,000 times as long as a Cricket Pitch.
In other words, 120 kilometers is 5,965.160 times the length of a Cricket Pitch, and the length of a Cricket Pitch is 0.00016764 times that amount.(per Marylebone Cricket Council / International Cricket Council Law #6)
The length of a cricket pitch, from one bowling crease to the other, is 0.0201168 kilometers. The wickets at either end of the pitch stand 0.00072 kilometers tall including the bails.
It's about 6,500 times as long as a Bowling Lane.
In other words, 120 kilometers is 6,264.40 times the length of a Bowling Lane, and the length of a Bowling Lane is 0.00015963 times that amount.(USBC specifications; tenpin; including pin deck)
According to the United States Bowling Congress specifications, a tenpin bowling lane should measure 0.019156 kilometers. In a Professional Bowling Association game, the lane must be lubricated by about 25 ml (0.85 fl. oz) of oil.
It's about 8,000 times as tall as The Hollywood Sign.
In other words, the height of The Hollywood Sign is 0.00013 times 120 kilometers.(a.k.a. Hollywoodland Sign) (Mount Lee, Hollywood Hills, Santa Monica Mountains, California)
Each of the white letters in the Hollywood Sign measures 0.015 kilometers tall. Built as an advertisement in 1923, the sign was intended to stand for only eighteen months.
It's about 8,000 times as long as a Semitrailer.
In other words, 120 kilometers is 8,202 times the length of a Semitrailer, and the length of a Semitrailer is 0.0001219 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 0.01463 kilometers (unless superseded by state law). These regulations also allow the vehicles to tow up to 36,000 kg in gross weight.
It's about 9,000 times as tall as a Brachiosaurus.
In other words, 120 kilometers is 9,200 times the height of a Brachiosaurus, and the height of a Brachiosaurus is 0.00011 times that amount.(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 0.013 kilometers. 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.