From wiki:
The facts below give a sense of how large 1,000,000,000 (10
9) is...
In terms of time:
* 10
9 seconds is 114 days short of 32 calendar years (≈ 31.7 years).
* About 10
9 minutes ago, the Roman Empire was flourishing and Christianity was emerging. (109 minutes is roughly 1,900 years.)
* About 10
9 hours ago, modern human beings and their ancestors were living in the Stone Age (more precisely, the Middle Paleolithic). (109 hours is roughly 114,000 years.)
* About 10
9 days ago, Australopithecus, an ape-like creature related to an ancestor of modern humans, roamed the African savannas. (109 days is roughly 2.7 million years.)
* About 10
9 months ago, dinosaurs walked the earth during the late Cretaceous. (109 months is roughly 82 million years.)
* About 10
9 years ago, the first multicellular eukaryotes appeared on Earth.
* The universe is currently thought to be about 13.7 x 10
9 years old.
In terms of distance:
* 10
9 centimetres is about the distance from Chicago to Tokyo.
* 10
9 inches is 15,783 miles, more than halfway around the world and sufficient to reach any point on the globe from any other point.
* 10
9 metres is almost three times the distance from the Earth to the Moon.
* 10
9 kilometres is over six times the distance from the Earth to the Sun.
In terms of finance:
* The possession of assets with total value of 10
9 United States dollars would place a person among the world's wealthiest individuals.
* As visualized in a work by artist Michael Marcovici, this amount of money in stacks of hundred-dollar bills can fit on twelve wrapped pallets.
In terms of area:
* A billion square inches would be a square about one half mile on a side.
* A piece of finely woven bed sheet cloth that contained a billion holes would measure about 500 square feet, large enough to cover a moderate sized apartment.
In terms of volume:
* There are a billion cubic millimeters in a cubic meter.
* A billion grains of table salt or granulated sugar would occupy a volume of about two and a half cubic feet.
* A billion cubic inches would be a volume comparable to a large commercial building slightly larger than a typical supermarket.
In terms of natural landscape;
* A small mountain, slightly larger than Stone Mountain Georgia, United States, would weigh (have a mass of) a billion tons.
In terms of count:
A is a cube; B consists of 1000 cubes of type A. C consists of 1000 B's; and D 1000 C's. Thus there are 1 million A's in C; and 1,000,000,000 A's in D. Likewise, there are 1,000,000,000 cubic millimeters in a cubic meter.