How to pronounce“megaparsec”in English

And we basically are getting it right at 4 megaparsecs with this and with the photo-z's,

The Hubble constant right now is about 75 kilometers per second per megaparsec, and a megaparsec is about 3 million light years.

We don't even get it right at 40 megaparsecs.

It's, for those who care, of order 70 kilometers per second, per megaparsec.