How to do the "rice test"

As you may know, one way to figure out what size implants would be right for you is to fill stockings with rice and stuff them in your bra. You can then wear them around to get an idea of how big you want to go.
RealSelf member Cyndi83 wrote a great tutorial:

Use knee-high hose (or cut-off pantyhose), and, using rice, fill them with the desired amount of cc's. (Ziplock baggies are not recommended, due to the "pointed" corners of the bag.) Once you have them filled, try them on under a sports bra.

The conversions below, which are approximate, will help you when doing the "rice test"
 
1 cup = 236cc
1/2 cup = 118cc
3/4 cup = 177cc
1/4 cup = 59cc
1/3 cup = 78cc
2/3 cup = 156cc
1/8 cup = 30cc

Thanks, Cyndi83!