Okay Zebra, we definitely agree that:

1 cubic light year = 8.46 × 10[sup]38[/sup] cubic km

AND

Universe Volume = 1.4137e+31 cubic light years

and a handy converter to check your work is at:

http://www.1728.com/convert.htm

and volume calculations can be done at:

http://www.1728.com/diam.htm

and **QED**

although my number came out correctly, I forgot to put the exponent in the calculation which *should be*:

I get (4/3)*PI*(1.5X10[sup]10[/sup])[sup]3[/sup] Light Years

Geez, volume calculations can be very tricky. I previewed my calculation, saw it already had ONE exponent but I forgot to show *that* raised to *another* exponent. You figure 1 exponent per number always looks right.

So, I guess we all are guilty of committing a few mathematical* faux pas * in this thread. :smack:

(I am SO glad my Ultar Converter was right though).