Is 6,220,000,000 squares as big as The Great Barrier Reef?
It's about one-fifth as big as The Great Barrier Reef
![Flag of Australia Flag of Australia](/images/flags/AUS.png)
The size of The Great Barrier Reef is about 37,500,000,000 squares.
(a.k.a. Barrier Reef) (Coral Sea, off Queensland, Australia) (approximate)
The Great Barrier Reef, the largest such reef in the world, covers about 37,500,000,000 squares. Reefs, such as the Great Barrier, grow in diameter at a rate of 1 to 3 cm per year.
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