It's about one-two-thousand-five-hundredth as heavy as a Grand Piano
In other words, the weight of a Grand Piano is 2,300 times 0.000000000200 megatonnes.(for Steinway & Sons, Model D Concert Grand Piano)
A Grand Piano, of the kind used for concert performances in large music halls, weighs 0.000000450 megatonnes. Well-made pianos such as this may last 75 to 100 years.
It's about one-two-thousand-five-hundredth as heavy as a Polar Bear
In other words, 0.000000000200 megatonnes is 0.000388 times the weight of a Polar Bear, and the weight of a Polar Bear is 2,580 times that amount.(Ursus maritimus) (adult, male)
An adult, male polar bear weighs between 0.0000005160 megatonnes. Polar bears are so heavily insulated by their 9.9 cm (3.9 in) layer of blubber that they are often difficult to detect using infrared photography sensors.
It's about one-two-thousand-five-hundredth as heavy as a Grizzly Bear
In other words, 0.000000000200 megatonnes is 0.000384 times the weight of a Grizzly Bear, and the weight of a Grizzly Bear is 2,600 times that amount.(a.k.a. brown bear, a.k.a. silver bear, Ursus arctos horribilis) (Adult, male, coastal area population average)
An adult, male grizzly bear from a coastal area (where food is plentiful) can weigh up to 0.0000005210 megatonnes. In spite of their tremendous size, grizzly bears can run at speeds of up to 55 kph (34 mph).
It's about one-three-thousand-five-hundredth as heavy as a Cow
In other words, the weight of a Cow is 3,400 times 0.000000000200 megatonnes.(for Holstein, a.k.a. Holstein Friesian, a.k.a. Friesian, Bos primigenius) (adult, heifer)
A mature Holstein cow (the well-known black-and-white, spotted breed of cow) typically weighs 0.000000680 megatonnes. President William Howard Taft (1909 - 1913) kept a Holstein cow named Pauline Wayne on the White House grounds — a gift from a Wisconsin senator and the source of the First Family's milk.
It's about one-eight-thousand-five-hundredth as heavy as a Car
In other words, 0.000000000200 megatonnes is 0.0001211 times the weight of a Car, and the weight of a Car is 8,258 times that amount.(for 2009 Ford Taurus) (curb weight)
A 2009 Ford Taurus weighs 0.0000016520 megatonnes. The first mass-produced car, the Curved Dash Oldsmobile — introduced in 1901 — weighed just 0.0000003860 megatonnes.
It's about 9,500 times as heavy as a Grain of Rice
In other words, the weight of a Grain of Rice is 0.00011 times 0.000000000200 megatonnes.(conventional; US; long-, medium-, and short-gran varieties; uncooked)
With great differences in variety, the average among a sampling of common short-, medium- and long-grain rices finds that a single grain weighs about 0.0000000000000210 megatonnes before cooking. A staple through most of human history, archaeological evidence indicates that the earliest rice cultivation was about 11,500 years ago.
It's about one-nine-thousand-five-hundredth as heavy as a Giraffe
In other words, 0.000000000200 megatonnes is 0.000104 times the weight of a Giraffe, and the weight of a Giraffe is 9,620 times that amount.(Giraffa camelopardalis reticulata) (adult, male, maximum of range)
An adult, male giraffe can weigh up to 0.000001930 megatonnes. Reaching 5.5 m (18 ft) in height by adulthood, giraffe calves can grow as much as 3 cm (1 in) per day.