Question

If the span of the universe was converted from light years to miles, what would it measure?

Answer 1

Size of the Observable Universe = 5.440 x `10^23` miles

Explanation:

The Entire Universe as we see it is roughly 46.3 billion Light-years in any direction. SO, hypothetically the radius of the universe is about 46.3 billion Light-years.

1 Light-year = 9.4 x `10^12` km

46.3 x `10^9` light-years = 46.3 x `10^9` x 9.4 x `10^12` km

46.3 Billion Light-years = 4.3522 x `10^23` km

1 mile = 1.6 km

1 km = 1 / 1.6 miles

1 km = 0.625 miles

4.3522 x `10^23` km = 0.625 x 4.3522 x `10^23` miles

Radius of the Observable Universe = 2.720 x `10^23` miles

Size of the Observable universe = Radius * 2

Size of the Observable Universe = 5.440 x `10^23` miles