How heavy is 9 tons?
It's about nine-tenths as heavy as a Tyrannosaurus rex
The weight of a Tyrannosaurus rex is about 9.70 tons.
(for FMNH PR 2081, a.k.a. "Sue") (a.k.a. Tyrannosaurus, a.k.a. T-Rex) (estimated live weight)
It's about one-and-three-tenths times as heavy as an Elephant
The weight of an Elephant is about 6.70 tons.
(for African bush elephant, Loxodonta africana) (Adult, bull)
It's about seven-tenths as heavy as an Anchor of a Cruise Ship
The weight of an Anchor of a Cruise Ship is about 12.50 tons.
(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
It's about two times as heavy as a Hippopotamus
The weight of a Hippopotamus is about 4.20 tons.
(Hippopotamus amphibius) (adult, male)
It's about three times as heavy as The Tongue of a Blue Whale
The weight of The Tongue of a Blue Whale is about 3 tons.
(Balaenoptera musculus) (adult)
It's about four times as heavy as a Rhinoceros
The weight of a Rhinoceros is about 2.30 tons.
(for Black rhinoceros, Diceros bicornis) (Adult, male)
It's about four times as heavy as a Giraffe
The weight of a Giraffe is about 2.130 tons.
(Giraffa camelopardalis reticulata) (adult, male, maximum of range)
It's about five times as heavy as a Car
The weight of a Car is about 1.8210 tons.
(for 2009 Ford Taurus) (curb weight)
It's about one-tenth as heavy as The Space Shuttle
The weight of The Space Shuttle is about 78 tons.
(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
It's about twelve times as heavy as a Cow
The weight of a Cow is about 0.750 tons.
(for Holstein, a.k.a. Holstein Friesian, a.k.a. Friesian, Bos primigenius) (adult, heifer)
It's about one-fifteenth as heavy as a Blue Whale
The weight of a Blue Whale is about 115 tons.
(Balaenoptera musculus)
It's about fifteen-and-a-half times as heavy as a Grizzly Bear
The weight of a Grizzly Bear is about 0.5740 tons.
(a.k.a. brown bear, a.k.a. silver bear, Ursus arctos horribilis) (Adult, male, coastal area population average)
It's about sixteen times as heavy as a Polar Bear
The weight of a Polar Bear is about 0.5690 tons.
(Ursus maritimus) (adult, male)
It's about one-fifteenth as heavy as The Statue of Liberty (without base)

The weight of The Statue of Liberty (without base) is about 150 tons.
(a.k.a. Liberty Enlightening the World, a.k.a. La Liberté éclairant le monde) (total weight, including foundation)
It's about eighteen times as heavy as a Grand Piano
The weight of a Grand Piano is about 0.50 tons.
(for Steinway & Sons, Model D Concert Grand Piano)