How Much Does Egg Yolk Weigh?
If you have ever needed to scale a recipe, track nutrients, or replace whole eggs with yolks only, knowing how much egg yolk weighs is surprisingly useful.
The answer depends on egg size, but there are reliable averages and kitchen conversions you can use right away.
In most standard large eggs, a yolk weighs about 17 to 18 grams, though smaller or larger eggs can shift that number a few grams in either direction.
Understanding yolk weight helps with baking precision, calorie counting, custards, mayonnaise, pasta dough, and other recipes where egg structure matters.
Average egg yolk weight by egg size
Egg yolk weight is tied to the size of the egg, not just the yolk itself.
A larger egg usually has a larger yolk, while the white tends to make up most of the extra weight in bigger eggs.
- Small egg yolk: about 14 grams
- Medium egg yolk: about 15 to 16 grams
- Large egg yolk: about 17 to 18 grams
- Extra-large egg yolk: about 19 grams
- Jumbo egg yolk: about 20 to 21 grams
These are practical averages rather than exact lab values.
The actual weight can vary based on breed, feed, freshness, and how the egg was graded under USDA standards or local equivalents.
How much does egg yolk weigh in ounces?
For cooks who use imperial measurements, a large egg yolk usually weighs about 0.6 ounces.
That is roughly 1 tablespoon plus a little extra, although volume and weight are not the same thing.
Here is a simple conversion guide:
- 1 small yolk: about 0.5 ounces
- 1 large yolk: about 0.6 ounces
- 1 jumbo yolk: about 0.7 ounces
Because yolks are dense and rich in fat, they can feel smaller than their weight suggests.
A digital scale is the best way to measure them accurately.
What makes up egg yolk weight?
Egg yolks are composed mostly of water, fat, protein, vitamins, and minerals.
Compared with egg whites, yolks contain far more calories and almost all of the egg’s fat.
On average, a yolk contains:
- Water
- Fat, including phospholipids and triglycerides
- Protein
- Cholesterol
- Fat-soluble vitamins such as vitamins A, D, E, and K
- Minerals such as iron, phosphorus, and selenium
This composition explains why yolks are heavier than they look and why they behave differently in emulsions, custards, and baked goods.
How many calories are in one egg yolk?
A single large egg yolk contains about 55 calories.
Smaller yolks contain slightly fewer calories, and larger yolks contain slightly more.
Approximate calorie estimates by size:
- Small yolk: about 45 calories
- Medium yolk: about 50 calories
- Large yolk: about 55 calories
- Extra-large yolk: about 60 calories
- Jumbo yolk: about 65 calories
If you are counting macros, note that nearly all of the yolk’s calories come from fat and protein, not carbohydrate.
How much does egg yolk weigh without the white?
Once separated from the white, a yolk still has the same basic weight, but handling and draining can slightly reduce that number.
If a yolk breaks or loses a bit of albumen during separation, the measured weight may come in a fraction of a gram lower.
For recipe development, it is best to weigh yolks after separation and before adding them to the mixing bowl.
This is especially important in French pastry, gelato, hollandaise, and enriched breads, where a few grams can change texture.
How to measure egg yolk weight accurately
The most accurate method is a digital kitchen scale that reads in grams.
This is more dependable than tablespoons, because yolks vary in shape and density.
- Crack the egg cleanly.
- Separate the yolk from the white using your preferred method.
- Place a small bowl on the scale and tare it to zero.
- Add the yolk and read the weight in grams.
If the yolk breaks, it is still usable for many recipes, but you may lose precision if some liquid escapes.
For exact results, measure intact yolks only.
Why egg yolk weight matters in cooking and baking
Egg yolk weight affects moisture, richness, emulsification, and structure.
In baking, yolks add tenderness and color, while whites contribute lift and dryness.
Replacing one with the other changes the final result.
Yolk weight is especially important in:
- Custards and pastry cream: yolks thicken sauces and create a silky texture
- Mayonnaise and aioli: yolks act as emulsifiers
- Pasta dough: yolks add elasticity and color
- Cheesecakes and enriched cakes: yolks improve creaminess
- Ice cream bases: yolks help stabilize the mixture
Recipes written by weight, rather than by count, are more consistent because egg size varies across markets and regions.
How many yolks equal one egg?
One large egg yolk is not equivalent to one whole egg.
A large whole egg typically weighs about 50 grams without the shell, and the yolk is only part of that total.
A practical approximation is:
- 1 large whole egg: about 50 grams
- 1 large yolk: about 17 to 18 grams
- 1 large egg white: about 30 to 33 grams
This means a yolk is roughly one-third of the edible weight of a large egg.
The white accounts for most of the remaining mass.
Egg yolk weight in grams for common recipe conversions
Use these quick conversions when a recipe calls for yolks by number or by weight:
- 1 large yolk: 17 to 18 grams
- 2 large yolks: 34 to 36 grams
- 3 large yolks: 51 to 54 grams
- 4 large yolks: 68 to 72 grams
- 6 large yolks: 102 to 108 grams
If you are substituting yolks in a formula designed for volume, it helps to weigh all ingredients together for consistency.
This is common in professional pastry kitchens and food manufacturing.
Do egg yolks vary by breed, feed, and freshness?
Yes.
Egg composition is influenced by genetics, hen age, diet, and farming conditions.
Some hens produce yolks that are naturally larger or more deeply colored, especially when feed contains carotenoids such as lutein and xanthophylls.
Freshness can also affect the feel of the yolk.
Very fresh eggs often have firmer yolks and tighter whites, while older eggs may spread more when cracked.
Even so, the yolk’s true weight usually stays close to the expected average unless the egg is unusually small or large.
What is the best way to use yolk weight in recipes?
When precision matters, measure by grams instead of by number of eggs.
This is the most reliable approach for professional results, especially in:
- Custards and sauces
- Macarons and meringue-based desserts
- Enriched doughs
- Batch cooking and scaling recipes
- Nutrition logging and meal prep
If a recipe lists “4 large yolks,” you can estimate about 68 to 72 grams total.
If it lists “2 ounces yolks,” you know that is close to 57 grams, or about 3 to 4 large yolks depending on size.
Quick reference for egg yolk weight
Here is the fastest answer to the question how much does egg yolk weigh:
- Small yolk: about 14 grams
- Medium yolk: about 15 to 16 grams
- Large yolk: about 17 to 18 grams
- Extra-large yolk: about 19 grams
- Jumbo yolk: about 20 to 21 grams
For most home cooking, using 17 to 18 grams per large yolk is the most practical standard.
