The best measurement of the age of the universe is 13.798 ± 0.037 billion years ( ( 13.798 ± 0.037 ) × 109 years or ( 4.354 ± 0.012 ) × 1017 seconds ) within the Lambda-CDM concordance model .
The best measurement of the age of the Universe is 13.8 billion years ( specifically , 13.798 ± 0.037 billion years ) .