It's about twenty times as heavy as a Chihuahua
In other words, 50 kilograms is 22.20 times the weight of a Chihuahua, and the weight of a Chihuahua is 0.045 times that amount.(a.k.a. Chihuahue(o) (FCI standard)
The F&d&ration Cynologique Internationale (FCI) calls for Chihuahuas to weigh about 1.5 to 3 kg. Relative to their body sizes, Chihuahuas have the largest brain size of any dog breed.
It's about one-thirty-fifth as heavy as a Car
It's about forty times as heavy as a Human Brain
In other words, the weight of a Human Brain is 0.027 times 50 kilograms.(adult)
The average weight of an adult human brain is between 1.350 kilograms. In humans and primates, sight and vision utilize about 30 different parts of the brain which together account for about half of the brain's size.
It's about one-fortieth as heavy as a Giraffe
In other words, 50 kilograms is 0.0259 times the weight of a Giraffe, and the weight of a Giraffe is 38.60 times that amount.(Giraffa camelopardalis reticulata) (adult, male, maximum of range)
An adult, male giraffe can weigh up to 1,930 kg. Reaching 5.5 m (18 ft) in height by adulthood, giraffe calves can grow as much as 3 cm (1 in) per day.
It's about one-fortieth as heavy as a Rhinoceros
In other words, the weight of a Rhinoceros is 42 times 50 kilograms.(for Black rhinoceros, Diceros bicornis) (Adult, male)
An adult black rhinoceros weighs between 1,400 and 2,800 kg. Rhinoceros are extremely aggressive — nearly one of every two males will die as a result of fighting with other rhinoceros.
It's about 50 times as heavy as a liter of Water
In other words, 50 kilograms is 49.99860 times the weight of a liter of Water, and the weight of a liter of Water is 0.02000056 times that amount.(fresh; 4° C / 39.2° F; maximum density)
Contrary to popular belief, 1 liter (0.0.264172052358148 gal) of water at 4° C / 39.2° F (its point of maximum density) weighs 1.000028 kg rather than 1 kg exactly. The total volume of water on the planet Earth is about 13,590,000,000,000,000,000 (13.59 quntillion) L (3,590,000,000,000,000,000 gallons).
It's about one-fifty-fifth as heavy as The Tongue of a Blue Whale
In other words, the weight of The Tongue of a Blue Whale is 53 times 50 kilograms.(Balaenoptera musculus) (adult)
The tongue of a Blue Whale can weigh up to 2,700 kilograms. Despite their tremendous size, blue whales feed almost exclusively on tiny crustaceans called krill and cannot swallow anything much larger than a beach ball.