How old is the Earth in human years? If you look up the age of Earth on science websites and in publications, youll generally find an estimate of 4.54 billion years, plus or minus 50 million years.

How old was the Earth 5 years ago?

Bottom line: Scientists derived the age of Earth, 4.54 billion years, largely from studying the oldest rocks on our planet and meteorites formed early in the solar systems history.