# What is the actual size of the universe?

In my opinion, "$t h e$ universe' is undefined. $O u r$ universe is 'observable universe'. Consensus is awaited.
There are approximations for 2 or 3 significant digits to the size of our galaxy Milky Way (MW). MW might be like an $e l o n g a t e d$ oblate spheroid, with axes nearly 6.5 E+04 light years across and some thousands of light years bulge, at its Black Hole center. MW comprises billions of stars. There are similar (larger/smaller) galaxies around MW that are studied, using ever-updating technology. As of now, an affirmative answer on your question is yet to come. Also, consensus on multi-universe and parallel-universe theories are awaited..