Step 1 :Given that 1 ounce = 28 grams, we can convert 203 grams to ounces by dividing 203 by 28.
Step 2 :\[203 \mathrm{~g} = \frac{203}{28} \mathrm{~oz}\]
Step 3 :After calculating the above expression, we get that 203 grams is approximately equal to 7.25 ounces.
Step 4 :Final Answer: \[203 \mathrm{~g} = \boxed{7.25} \mathrm{~oz}\]