Eggs are the ingredient people most often need to convert mid-recipe, usually because the carton in the fridge isn't the size the recipe assumed. This guide pulls together every egg conversion on the site — sizes, weights, volumes, whites and yolks, and the UK/US mismatch — and, more usefully, tells you which of them you actually need for the situation you're in.
Start Here: One Number Does Most of the Work
1 US large egg = 50g without shell = about 3½ tablespoons. Almost every American recipe is written around this, and almost every conversion below is a ratio against it. If you remember nothing else from this page, remember that a large egg is 50g of usable egg, because it lets you solve most problems by simple arithmetic rather than lookup.
Egg sizes are legally defined by minimum net weight per dozen, not per egg. That's why two large eggs from the same carton can differ noticeably — the carton has to average out, but individual eggs vary. It's also why every chart on this site gives approximate figures: precision beyond a gram or two isn't available at the carton level, and for most recipes it isn't needed.
Which Conversion Do You Actually Need?
| Your situation | What you need | Where |
|---|---|---|
| Recipe wants large, you have medium/small/jumbo | Size substitution ratios | How to Substitute Egg Sizes |
| Recipe specifies eggs in cups | Eggs per cup, by size and part | How Many Eggs in a Cup? |
| You want to swap sizes quickly without maths | Interactive size converter | Egg Size Converter |
| Recipe is in grams or ml | Weight and volume per egg | Egg Weight & Volume Converter |
| You need half an egg, or a third | Volume method (beat, then measure) | See below |
| Recipe is British or European | UK/US size mapping | See below |
The Master Table
Everything in one place. Weights are without shell, since that's what ends up in the bowl.
| US size | Weight (no shell) | Volume | Per 1 cup |
|---|---|---|---|
| Small | 35g | 2 tbsp + ½ tsp | ~5-6 eggs |
| Medium | 44g | 3 tbsp | ~4-5 eggs |
| Large (the standard) | 50g | 3 tbsp + ½ tsp | ~4 eggs |
| Extra-Large | 56g | 4 tbsp | ~3-4 eggs |
| Jumbo | 63g | 4 tbsp + 1 tsp | ~3 eggs |
For a large egg specifically, the split is roughly 1 tablespoon of yolk and 2 tablespoons of white. That ratio is worth knowing because it lets you hit a recipe's egg quantity using whatever parts you have left over.
The Substitution Rule Most People Overthink
The single most common egg question is some version of "the recipe wants large and I have something else." The honest answer for most of what home cooks bake: swap 1:1 and don't adjust anything. A medium egg is about 88% of a large one; that 12% gap disappears into a cookie dough or a pancake batter without a trace.
The adjustment only starts to matter when both of these are true at once: the recipe uses 4 or more eggs, and the eggs are providing the structure rather than just moisture and binding. Four or more medium eggs standing in for large is where you'd add one extra; four or more jumbo is where you'd drop one. Below that threshold, count them out and carry on.
Which Recipes Actually Care
| Risk level | Recipes | What to do |
|---|---|---|
| Doesn't matter | Scrambled, omelettes, frittatas, egg wash, meatball binding | Use whatever is in the fridge |
| Barely matters | Cookies, muffins, quick breads, pancakes, most cakes | Swap 1:1 |
| Matters | Angel food cake, chiffon, soufflé, custard, meringue | Measure by volume instead of counting |
The pattern: the more the egg is doing the structural work, the more its size matters. In a meatball the egg is glue and the size is irrelevant. In a soufflé the egg is the recipe.
The Volume Method: The Universal Escape Hatch
When precision matters, or when you need a fraction of an egg, stop counting and start measuring. Beat the eggs thoroughly, then measure the liquid:
- Recipe needs 3 large eggs → 3 × 3½ tbsp = 10½ tablespoons of beaten egg, whatever size you crack
- Recipe needs half an egg → beat one and measure 1¾ tablespoons
- Recipe needs 2 whites → 4 tablespoons; 2 yolks → 2 tablespoons
This is also the answer when you're halving a recipe with an odd number of eggs, a problem covered more broadly in How to Cut a Recipe in Half.
The UK/US Trap
This one causes more failed bakes than any size substitution, because the size names are identical on both sides of the Atlantic and the weights are not. A UK large egg is closer to a US extra-large, and a UK medium is closer to a US large.
So: in the UK following an American recipe that calls for large eggs, reach for UK medium. In the US following a British recipe calling for medium, reach for US large. Following the label rather than the weight shifts every egg in the recipe up or down a full size — which is exactly the situation where the "4 or more eggs" threshold above starts to bite.
Every Related Tool and Guide, in One List
- Egg Size Converter — swap any size for any other, plus duck, quail, goose and ostrich eggs
- Egg Weight & Volume Converter — grams, ml, tablespoons, ounces
- How to Substitute Egg Sizes in Recipes — full ratio tables and the UK/US comparison
- How Many Eggs in a Cup? — whole eggs, whites and yolks by size
- Baking Substitutions Calculator — for when you have no eggs at all
- How to Cut a Recipe in Half — including odd egg counts
- The Complete Baking Measurement & Conversion Guide