Need to determine when the universe started its trip the distance is 800 Mpc, but the first convert Mpc into?

Question

km because the rate, or velocity is in km/sec
800 Mpc = ________km

Answer 1

A Mpc is a mega parsec or million parsecs. A parsec is 206,265 AU, or Astronomical Unit. An AU is the distance from the Earth to the Sun, 149,597,871 kilometers. So 800 Mpc = 800 * 1,000,000 * 206,265 * 149,597,871 = 24,685,443,889,452,000,000,000 kilometers.

Answer 2

1 Mpc = 3.08568025 × 10^22 meters

So 800 Mpc = 2468.5442 x 10^22 meters

Divide by 1000 for kM