Find the number of milliliters in a half-gallon:
There are approximately 3785.41 milliliters (ml) in a gallon.
Half a gallon contains 3785.41 / 2 = 1892.705 ml.
2. Divide the milliliters in a half-gallon by the milliliters in a 750ml bottle:
1892.705 ml / 750 ml = 2.5236
Answer: There are approximately 2.52 750ml bottles in half a gallon.