Many scientists agree that the universe is about

years old.

The universe is about 13.8 billion years ago.

Explanation:

In physical cosmology, the age of the universe is the time slipped by since the Big Bang. The present estimation of the age of the universe is around 13.8 billion years (starting at 2015) - 13.799±0.021 billion years inside the Lambda-CDM concordance model.

This makes sure that the universe was created a long long time ago.