Age of the universe:
13.7 ± 0.13 billon years
The earths age is estimated to be 4.54 billion years give or take 1%, we don't use carbon dating to determine the age of the earth, we use radiometric dating.
Carbon dating is only used to determine the age of things less than 60,000 years old. Carbon dating has been known to given faulty results based on the geographic origin of the sample (This is of course taken into consider when dating samples), normally I wouldn't mention this because it's superfluous information but creationists often like to bring up improperly dated samples as evidence that "science is wrong".