how do you convert ounces into cubic centimeters? Ex: how does 12 oz. change into cc.

My book of converion factors has 1 fluid ounce is 0.00002957353 m³. But 1 meter is 100 centimeters so 1 m³ is 100³ cm³. Thus

1 ounce = 0.00002957353 1000000 = 29.57353 cm³