How big is the universe in inches?

One light year is equal to 372469703644913400 inches.

The universe is 46 billion light years apart,

that's about ##46,000,000,000## light years.

so basically,

the universe is about ##372469703644913400,000,000,000 * 46 ##

inches apart.

I cannot calculate any further since the limit exceeds all calculator limits(the ones at my home)

good luck doing it by hand