Measuring question

Hope this helps: 3 oz portion is similar in size to a deck of cards. 1 oz of cooked meat is similar in size to 3 dice. A 1-inch meatball is about one ounce. 4 oz of raw, lean meat is about 3 ounces after cooking. Here is a visual chart: https://www.urmc.rochester.edu/MediaLibraries/URMCMedia/ctsi/resources/crc/documents/VisualizeYourPortionSize12-01-09.pdf

I would think the size difference is pretty negligible. If you are weighing it to determine how many carbs or grams of protein you are consuming, I wouldn't worry too much about it because a little bit more protein isn't going to make a huge difference.