# How many miles across is the universe? How is it measured?

Astronomers do not measure distance in miles, the number becomes too large too quickly. The light year is the standard measure. A light year is $6.2 \times {10}^{12}$ miles. $92$ billion light years equates to $9.2 \times {10}^{9}$. Multiply the two and you get $5.7 \times {10}^{22}$ miles.