Visually comparing common objects to food portions can help you estimate the size of a portion when you don’t have measuring cups or a food scale handy. Here are some examples of common objects and food portions of the same size:
- Average woman’s fist: 1 cup
- Baseball: 1 cup
- Checkbook: 3 ounces cooked fish
- Computer mouse: medium baked potato
- Deck of cards: 3 ounces cooked meat or poultry
- Tennis ball: 1/2 cup cooked food
- Tip of your thumb: 1 teaspoon