It's about 500,000 times as heavy as a Tennis Ball.
In other words, 31.530 tons is 496,000 times the weight of a Tennis Ball, and the weight of a Tennis Ball is 0.000002020 times that amount.(ITF Standard; for Type 2 ball)
Per International Tennis Federation standard, regulation tennis balls must weigh about 0.00006360 tons. Competition balls are also tested for bounce height, with the standards requiring that a ball dropped from 254 cm must bounce back to a height of 135 cm to 147 cm.
It's about 600,000 times as heavy as a Golf Ball.
In other words, 31.530 tons is 622,800 times the weight of a Golf Ball, and the weight of a Golf Ball is 0.0000016060 times that amount.(per R&A USGA Rules of Golf; maximum rule weight)
According to the Rules of Golf (as approved by the United States Golf Association and the Rules Committee of the Royal and Ancient Golf Club of Saint Andrews), golf balls must weigh no more than 0.000050630 tons. Golf balls are not required to have the familiar dimpled pattern, but the design has been popular since its invention in 1905 because it reduces drag while increasing lift.
It's about 850,000 times as heavy as a Light Bulb.
In other words, the weight of a Light Bulb is 0.00000120 times 31.530 tons.(a.k.a. lamp) (for A19-size, 60w, incandescent bulb by Bulbrite; package weight)
A standard, sixty-watt light bulb weighs about 0.0000380 tons. The tightly-coiled filament inside a bulb of this size would measure about 579mm if uncoiled and stretched out.
It's about 1,000,000 times as heavy as a Battery (AA).
In other words, 31.530 tons is 1,200,000 times the weight of a Battery (AA), and the weight of a Battery (AA) is 0.000000830 times that amount.(Alkaline)
An "AA" size battery weighs 0.0000260 tons. AA batteries came into common use during World War II and were given their name by the American National Standards Institute (ANSI) Committee C18 because they were smaller than the "A" size batteries which were invented first.
It's about 1,500,000 times as heavy as a Mouse.
In other words, the weight of a Mouse is 0.000000710 times 31.530 tons.(a.k.a. "House mouse", Mus musculus) (adult)
The weight of a mouse is typically an average of 0.0000230 tons. While most mice typically live two to three years, the Methuselah Mouse Prize — an award administered by a non-profit organization which advances aging-related research — was once awarded to a team of scientists whose research resulted in a mouse living just under five years.
It's about 2,000,000 times as heavy as a Compact disc.
In other words, 31.530 tons is 1,900,000 times the weight of a Compact disc, and the weight of a Compact disc is 0.000000530 times that amount.(a.k.a. CD)
A compact disc typically weighs 0.0000170 tons. Data is stored on CDs by encoding into the track a series of tiny pits — each between 3.5 and 850 µm (0.00014 and 0.033 in) in length.
It's about 2,500,000 times as heavy as a Battery (AAA).
In other words, the weight of a Battery (AAA) is 0.000000420 times 31.530 tons.(Alkaline)
An "AAA" size battery weighs 0.0000130 tons. Batteries are named by the American National Standards Institute (ANSI) Committee C18 and AAA batteries were given their name because they were smaller than the "AA" and "A" size batteries which were invented first.