There is no general conversion formula. For winny, they put 50mg in 1cc. For Sustanon250 they put 250mg in 1cc. Other AS come in a variety of concentrations. You can get laurabolin at 25mg per 1cc, or 50mg per 1cc. So you just have to read the label. mg=milligram and is the amount (weight) of the steroid. cc=cubic centimeter and is the volume that the AS is dissolved in.