To convert from ounces to cups, you can use the following rule:
\[ \text{Cups} = \frac{\text{Ounces}}{8} \]
So, for any given number of ounces, you would divide that number by 8 to find the equivalent measurement in cups. For example, if you have 16 ounces, you would calculate:
\[ \text{Cups} = \frac{16}{8} = 2 \text{ cups} \]