How old is our Universe?
Best estimate so far: 13.79 to 13.82 billion years.
You could find the estimated age of universe on many websites like on wikipedia .
let me twist the question a bit to you .
what is meant by 'how old' ? . does that refer to age of universe in yrs .
so, i would like to just say that you could measure the life span of something like u-n-i-v-e-r-s-e that's because it is quite a bit huge and . also, time goes realtive.