It's about nine-tenths as heavy as a Blue Whale
In other words, 100 tons is 0.868 times the weight of a Blue Whale, and the weight of a Blue Whale is 1.15 times that amount.(Balaenoptera musculus)
Blue whales weigh between 115 tons. The largest mammal to have ever lived, blue whales feed almost exclusively on krill — tiny invertebrates weighing about 0.00000110 tons each.
It's about one-and-three-tenths times as heavy as The Space Shuttle
In other words, 100 tons is 1.3 times the weight of The Space Shuttle, and the weight of The Space Shuttle is 0.77 times that amount.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 78 tons. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 22 tons.
It's about two-thirds as heavy as The Statue of Liberty (without base)
In other words, 100 tons is 0.65 times the weight of The Statue of Liberty (without base), and the weight of The Statue of Liberty (without base) is 1.5 times that amount.(a.k.a. Liberty Enlightening the World, a.k.a. La Liberté éclairant le monde) (total weight, including foundation)
The total weight of the Statue of Liberty — the Statue's copper and framework only, excluding the base — is roughly 150 tons. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about three-fifths as heavy as a House
In other words, 100 tons is 0.582 times the weight of a House, and the weight of a House is 1.72 times that amount.(149 sq. m, single-level, unfurnished)
A 149 sq. m (1,600 sq. ft), single-story, unfurnished house (without extensive masonry) of the type commonly found in America would weigh approximately 172 tons, based on the weight of the included materials. In contrast, a yurt — a type of dwelling structure popular among nomadic peoples of East Asia — typically weighs less than 0.5070 tons.
It's about one-tenth as heavy as Christ the Redeemer (statue)
In other words, 100 tons is 0.143 times the weight of Christ the Redeemer (statue), and the weight of Christ the Redeemer (statue) is 6.99 times that amount.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 700 tons. The statue overlooks the city of Rio de Janeiro from atop the 709.9-meter (2,329 ft) granite peak in the Tijuca Forest National Park.
It's about eight times as heavy as an Anchor of a Cruise Ship
In other words, 100 tons is 8.0 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 0.125 times that amount.(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
Each of the forward anchors of the RMS Queen Elizabeth 2 weighs 12.50 tons. The anchor of the QE2 now sits in front of the Holyrood Church in Southampton, England, United Kingdom, along a pedestrian tourist route known as "the QE2 mile."
It's about fourteen times as heavy as a Tyrannosaurus rex
In other words, 100 tons is 14 times the weight of a Tyrannosaurus rex, and the weight of a Tyrannosaurus rex is 0.07 times that amount.(for FMNH PR2081, a.k.a. "Sue") (a.k.a. Tyrannosaurus, a.k.a. T-Rex) (estimated live weight)
The notable Tyrannosaurus specimen housed at the Field Museum of Natural History in Chicago, Illinois, "Sue," is estimated to have weighed about 7.10 tons while alive. A renowned predator in popular culture, the teeth of tyrannosaurus rex were up to 33.02 cm (13 in) long.