How is Hubble's constant related to time?

1 Answer
May 1, 2016

[Hubble's costant] = #T^(-1)#


The reciprocal of the Hubble constant #H_0# expressed in km/sec/mega parsec is used ro approximate the age of our universe as 13.8 billion years. The dimension# [H_0] = T^(-1)#.

Note that the dimension of [km/megaparsec= 0 (dimensionless), as both km and megaparsec are small and very large units of distance.