It's about 15,000 times as heavy as a Football (American)
In other words, 6,100 kilograms is 14,839.390889130 times the weight of a Football (American), and the weight of a Football (American) is 0.000067388210706990 times that amount.(a.k.a. "pigskin") (NFL standard)
Per National Football League official rules, an American football must weigh between 0.396893323750 kilograms and 0.4252428468750 kilograms. Because of NFL regulations, ceremonial considerations, and backup requirements, each NFL Superbowl requires the manufacture of 144 balls exclusively for the event.
It's about 15,000 times as heavy as a Can of Soup
In other words, the weight of a Can of Soup is 0.0000590 times 6,100 kilograms.(for Campbell''s Condensed Tomato Soup, 317.9 ml)
A can of Campbell''s Tomato Soup weighs 0.350 kilograms. Cans have been used to store soup and other foods since their invention in 1913, but a dedicated can opener was not developed until cans began to use thinner materials — prior to that time, cans were usually opened using various blunt instruments and tools.
It's about one-twenty-thousandth as heavy as The CN Tower
In other words, 6,100 kilograms is 0.0000517340 times the weight of The CN Tower, and the weight of The CN Tower is 19,330 times that amount.(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada)
The CN Tower weighs approximately 117,910,000 kilograms. The Tower is home to the world's highest glass floor — a viewing area that allows visitors to look straight down 342 m (1,120 ft) to the ground below.
It's about 20,000 times as heavy as a Human Heart
It's about 30,000 times as heavy as a Hamster
In other words, the weight of a Hamster is 0.0000300 times 6,100 kilograms.(for Syrian hamster, a.k.a. golden hamster, a.k.a. Mesocricetus auratus; adult)
An adult Syrian hamster has a typical weight of about 0.20 kilograms. Known for transporting food in the pouches of their cheeks so that they can bury it later, some hamsters can store up to 25 kg of food in their borrows.
It's about one-thirty-five-thousandth as heavy as The Sears Tower
In other words, 6,100 kilograms is 0.000030230 times the weight of The Sears Tower, and the weight of The Sears Tower is 33,080 times that amount.(officially "Willis Tower" as of 2009) (Chicago, Illinois)
The Willis Tower weighs approximately 201,800,000 kilograms. The outer wall surface of the Tower is covered with black anodized aluminum panels which would total 110,000 sq. m (28 acres) if laid out together.
It's about 35,000 times as heavy as a Billiard Ball
In other words, 6,100 kilograms is 37,421.072676946 times the weight of a Billiard Ball, and the weight of a Billiard Ball is 0.0000267229111424180 times that amount.(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 0.15592237718750 kilograms and 0.170097138750 kilograms. According to legend, the difficulty in obtaining elephant ivory for the manufacture of billiard balls in the 19th century inspired the search for a replacement material, which led to the development of the first industrial plastic.