Nutrition

How to Judge Serving Sizes

Choose a preferred language

Some foods are weighed in ounces. Some are measured in spoons or cups. Others, such as fruits, are based on an average or medium size. Below are some serving sizes and tips to help you judge just what 1 serving looks like.


Ounces

  • A serving of meat, poultry, or fish is 2 to 3 ounces. This looks like the size of a deck of cards or the palm of the hand.

  • A serving of natural cheese is 1½ ounces. This looks like the size of 3 to 4 dice. A serving of processed cheese is 2 ounces.

Palm of open hand showing 2-3 ounce portion size.


A medium-sized piece

  • A serving of fresh, whole fruit is 1 medium-sized piece.

  • A serving of melon is a 2-inch slice or 1 cup diced or melon balls.


Tablespoons and teaspoons

  • A serving of peanut butter is 2 tablespoons.

  • A serving of salad dressing is 1 tablespoon. This is about the same size as the thumb.

  • A serving of fat, oil, or sugar is 1 teaspoon.

Closeup of fist with thumb extended showing tablespoon portion size.


Cups

  • A serving of these foods is ½ cup: cooked cereal, rice, dried beans, or pasta; cooked or chopped raw vegetables; chopped, cooked, or canned fruit.

  • A serving of vegetable or fruit juice is ¾ cup.

  • A serving of these foods is 1 cup: raw, leafy vegetables; berries; milk; or yogurt.

  • A serving of ready-to-eat cereal is ½ cup, ¾ cup, or 1 cup. The Nutrition Facts label tells you just how much 1 serving is.

  • A baseball or average-sized fist is about 1 cup.

  • A tennis ball is about ½ cup.

Cupped hand showing half-cup portion size.Fist showing one-cup portion size.

These are just a few examples. For a longer list, you can search online through sources such as the Academy of Nutrition and Dietetics at eatright.org or the American Heart Association at heart.org . Or ask your doctor for help.

Online Medical Reviewer: Daphne Pierce-Smith RN MSN

Online Medical Reviewer: Raymond Turley Jr PA-C

Online Medical Reviewer: Shaziya Allarakha MD

Date Last Reviewed: 04/01/2025

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
doctor icon

Find the right provider to meet your needs

From primary care to specialty services and more.

Find a Doctor
appointment clock icon

Call for an Appointment

Offering personalized care at more than 20 clinics across three cities and two states.

Call Now
Related Articles
Read article
Wellness
Low-Salt Diet

A low-salt diet removes foods that are high in salt. It also limits the amount of salt you use when cooking. Read on to see what foods and drinks you can have on this diet.

Read article
Wellness
Low-Fiber Diet

A low-fiber diet means eating foods that don't have much fiber. They are easy to digest. Learn why your provider may put you on this kind of diet-and what foods you can and can't eat.

Read article
Wellness
Discharge Instructions: Eating a Low-Potassium Diet

People who have certain kidney problems may be told to follow a low-potassium diet. This sheet can help you get started.

Read article
Wellness
Add Variety to Your Vegetables

Vegetables offer not only a variety of flavors and textures--they are also packed with nutrients. But many Americans limit their vegetable consumption to just a few types.