how old is the earth?

Answer 1

Modern geologists consider the age of the Earth to be around 4.54 billion years (4.54×109 years).[1] This age represents a compromise between the interpretations of oldest-known terrestrial minerals – small crystals of zircon from the Jack Hills of Western Australia – and astronomers' and planetologists' determinations of the age of the solar system based in part on radiometric age dating of meteorite material and lunar samples.

Answer 2

Roughly 6000 years old according to the Bible---carbon 14 is still found in coal and diamond samples which indicate it's at least less than 40,000 years old. There are many other scientific measurements of earth conditions that indicate a young earth.
http://www.malone.edu/erodd/n160c14coal.htm
http://apologeticspress.org/articles/3469

Answer 3

Really? You couldn't have gone to a search engine and typed "How old is the earth?"

Answer 4

4.56 Billion years old.