How Many Oysters are in 3 Ounces? A Quick Reference Guide

Oysters are a beloved shellfish enjoyed by many for their briny flavor and impressive nutrition profile. Whether you’re planning to shuck some oysters at home or order a plate during happy hour, it’s helpful to know how many oysters make up a typical 3-ounce serving.

In this complete guide, we’ll provide key details on oyster sizes, typical counts per serving, nutrition facts, and tips for buying and storing these tasty bivalves.

What is Considered a Serving Size of Oysters?

A standard serving size of shucked oysters is about 3 ounces This is equal to

  • 6 large oysters
  • 12 medium oysters
  • 18-24 small oysters

The larger the oyster, the fewer needed to make up 3 ounces Smaller oysters require more per serving.

A typical appetizer portion is often 6-12 oysters on the half shell. So 3 ounces provides a hearty individual serving

Nutrition Facts for 3 Ounces of Oysters

A 3-ounce serving of raw oysters contains:

  • Calories: 69
  • Protein: 8g
  • Fat: 2g
  • Carbs: 4g
  • Iron: 24% DV
  • Zinc: 128% DV
  • B12: 567% DV

Oysters are low in calories but high in nutrients like zinc, iron, selenium, B12, and copper. The mineral content is exceptionally impressive, making them one of the most nutritious protein sources.

Average Oyster Size and Counts

Oyster sizes are usually categorized as:

  • Extra small
  • Small
  • Medium
  • Large
  • Extra large

Here are the approximate counts per 3 ounces for each size:

  • Extra small – 24-30 oysters
  • Small – 18-24 oysters
  • Medium – 12 oysters
  • Large – 6-9 oysters
  • Extra large – 4-6 oysters

The smallest oysters require about 30 per 3-ounce serving, while the very largest may only need 4-6.

Oyster Counts for Specific Varieties

Counts per 3 ounces also vary by species. Here are estimates for some popular types:

  • Kumamoto – 24-30 per 3 oz
  • Malpeque – 12 per 3 oz
  • Bluepoint – 12 per 3 oz
  • Atlantic – 12 per 3 oz
  • Pacific – 18-24 per 3 oz
  • Olympia – 30-36 per 3 oz

Tiny Olympias and Kumamotos will be on the higher end, while Malpeques, Bluepoints and other larger species have lower counts per serving.

Purchasing Tips

When buying fresh oysters, look for:

  • Tightly closed, unbroken shells
  • Shells that feel heavy for their size
  • Shellfish tags with harvest dates

Aim to eat oysters within 4 days of harvest for peak quality. Discard any that won’t close when tapped.

Well-handled farmed oysters are a safer choice than wild oysters from questionable sources.

Storing and Handling Oysters

To retain freshness:

  • Keep live oysters cold at 35-40°F

  • Store in a container covered with damp towels

  • Don’t keep for more than 7 days before eating

  • Refrigerate shucked oysters in their liquid

  • Eat within 2 days of shucking

Proper handling prevents spoilage and foodborne illness.

Serving Suggestions

Raw oysters on the half shell make an elegant appetizer. Provide lemon and sauces for squeezing.

For main dishes, baked, roasted, steamed, or fried oysters are delicious. Add to seafood stews or pan roasts as well.

Allow at least 3 ounces per person, which provides 6-12 medium oysters depending on size.

Use raw for ceviche and oyster shooters. Freeze shucked meats for longer storage.

Oyster Alternatives

Clams, mussels, and scallops can often be swapped for oysters in recipes. Cooked shrimp or lobster meat also work in some dishes calling for oysters.

How Much Oyster Goodness is in 3 Ounces?

Now that you know approximately how many oysters make up a standard 3-ounce portion, you can better plan for recipes, appetizers, and meals.

A serving this size not only provides 8 grams of protein, but also over 100% of your daily needs for zinc, selenium, B12, and copper. That makes oysters one of the most nutrient-dense foods you can eat.

So now that you’re armed with all the details on counts per serving, go forth and enjoy these incredible mollusks! Whether you prefer them raw, roasted, baked, or fried, oysters offer unmatched briny flavor and nutrition.

Are Oysters Good For You? – Dr. Berg


How much is 3 ounces of oyster?

One 3-ounce serving of oysters (typically 2-3 raw oysters) has only 69 calories, 8 grams of protein, and only 2 grams of fat.

How many oysters is 4oz?

If you’re talking “medium” oysters, four ounces equals about three oysters; in the “small” category it’s about four, and in “extra small,” about six.

How many ounces are in an oyster?

(Oysters, of course, will vary in size, so there may be between 15 and 22 oysters per pound, which translates to 0.7 to 1.06 ounces per oyster.)

How much do 6 oysters weigh?

A serving of 6 oysters (approximately 84 grams) provides 57 calories, 6 g protein, 2 g fat (0.65 g saturated), 177 mg sodium, 45 mg choleseterol, is an excellent source of iron, copper, selenium and vitamin B12, and a source of phosphorus, vitamin C, thiamin and riboflavin.

How many ounces of oysters are in a serving?

Oysters are one of the few species that are eaten both raw and cooked. Three ounces of raw oysters, which is about two medium oysters or three small oysters, is equal to a single serving. Three ounces of raw oysters contain: Calories: 69 Total fat: 2 g Cholesterol: 42.5 mg Sodium: 90.1 mg Total carbs: 4.2 g Dietary fiber: 0 g

How many calories are in 3 ounces of raw oysters?

Three ounces of raw oysters contain: Calories: 69 Total fat: 2 g Cholesterol: 42.5 mg Sodium: 90.1 mg Total carbs: 4.2 g Dietary fiber: 0 g Sugar: 0 g Protein: 8 g Wondering about how many calories raw oysters contain during happy hour?

How many carbs are in a 3 ounce serving of oysters?

There are very few carbohydrates in oysters with just over 4 grams in a 3-ounce serving. There is less fat in oysters than carbohydrates, with just 2 grams per 3 ounces. Oysters are packed with protein. A 3-ounce serving of oysters provides 8 grams of protein and all of the essential amino acids.

How many calories are in a serving of oysters?

Oysters are packed with protein. A 3-ounce serving of oysters provides 8 grams of protein and all of the essential amino acids. Despite being low in calories, oysters are high in vitamins and minerals. Oysters are a good source of zinc, selenium, copper, iron, and vitamin B12. One serving of oysters (about 3 ounces) provides 69 calories.

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