* Speed of light: Light travels at approximately 299,792 kilometers per second (km/s).

* Time in a year: There are 31,536,000 seconds in a year (365.25 days x 24 hours x 60 minutes x 60 seconds).

* Light-year: A light-year is the distance light travels in one year.

Calculations:

1. Distance light travels in one year: 299,792 km/s * 31,536,000 s/year ≈ 9.461 trillion km/year

2. Distance in 93 billion light-years: 9.461 trillion km/year * 93 billion years ≈ 8.80 x 10^23 kilometers

Therefore, 93 billion light-years is approximately 8.80 x 10^23 kilometers.