How many years old is the Earth?

Science easy Data from 2024

Guess before you scroll — the answer is below

Answer in years. Shorthand like 9m or 1.2bn works.

The answer

4,540,000,000 years

Roughly 4.5B.

The Earth is about 4.54 billion years old, dated from meteorites and the oldest terrestrial minerals. Life appeared within the first billion years; complex animals only in the last 600 million. Humans have existed for the final 0.007% of it.

Where this number comes from

Source NASA / U.S. Geological Survey
Figure refers to 2024
Last checked
Unit years

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