How Many Eggs in a Cup? Whole Eggs, Whites & Yolks
Most recipes call for eggs by count — 2 eggs, 3 eggs. But some large-batch recipes, custard bases, and commercial formulas specify eggs by volume in cups. Here's exactly how many eggs you need to fill a cup, broken down by egg size and whether you're measuring whole eggs, whites, or yolks.
The Short Answer
4 large whole eggs = 1 cup. A single large egg is about ¼ cup (4 tablespoons, or roughly 50ml) when beaten. That makes the math simple for large eggs.
Whole Eggs Per Cup by Size
| Egg size | Approx. volume per egg | Eggs per 1 cup |
|---|---|---|
| Small | 3 tbsp (45ml) | ~5–6 eggs |
| Medium | 3½ tbsp (52ml) | ~4–5 eggs |
| Large | 4 tbsp / ¼ cup (59ml) | ~4 eggs |
| Extra-large | 4½ tbsp (67ml) | ~3–4 eggs |
| Jumbo | 5 tbsp (74ml) | ~3 eggs |
These are approximate — egg volumes vary slightly depending on the hen and freshness. For most recipes, being one egg off won't matter. For custards, soufflés, or precise baking, measure by volume if the recipe specifies cups.
Egg Whites Per Cup
| Egg size | White volume per egg | Whites per 1 cup |
|---|---|---|
| Small | 2 tbsp (30ml) | ~8 whites |
| Medium | 2¼ tbsp (33ml) | ~7 whites |
| Large | 2½ tbsp (37ml) | ~6–7 whites |
| Extra-large | 3 tbsp (44ml) | ~6 whites |
| Jumbo | 3½ tbsp (52ml) | ~5 whites |
Egg Yolks Per Cup
| Egg size | Yolk volume per egg | Yolks per 1 cup |
|---|---|---|
| Small | ¾ tbsp (11ml) | ~14–15 yolks |
| Medium | 1 tbsp (15ml) | ~12–13 yolks |
| Large | 1¼ tbsp (18ml) | ~12 yolks |
| Extra-large | 1½ tbsp (22ml) | ~10–11 yolks |
| Jumbo | 1¾ tbsp (26ml) | ~9 yolks |
When Would a Recipe Use Cup Measurements for Eggs?
Recipes that specify eggs by volume are usually:
- Large-batch baking: Commercial or catering recipes scaled for dozens of portions
- Custard and curd recipes: Where exact liquid ratios matter for texture
- Frozen egg products: Liquid or frozen eggs sold by volume, not count
- International recipes: Some European or professional recipes specify by weight (grams) rather than count
For a standard home recipe calling for 2 or 3 eggs, just use the count. Volume measurement is only worth doing when the recipe explicitly asks for it.
How to Measure Half an Egg
If you need half an egg (common when halving a recipe), beat one large egg until the yolk and white are fully combined, then measure out half by volume — about 1½ tablespoons. The other half can be scrambled or used in another recipe the same day.
For precise baking, this matters more than you'd think. Using a full egg instead of half in a cookie recipe makes them slightly softer and more moist — usually fine. In a delicate custard or tart, it can throw off the set.
Egg Size Substitution
If your recipe calls for large eggs but you only have medium, you'll need to adjust. Since medium eggs are about 10–12% smaller by volume than large, for most recipes you can substitute 1:1 without issue. For recipes calling for 4 or more eggs, use one extra medium egg to compensate for the volume difference.
For exact substitutions by count, use our Egg Size Converter — enter the egg count, the size the recipe calls for, and the size you have, and it calculates the exact swap.
Frequently Asked Questions
How many medium eggs equal 4 large eggs?
4 large eggs equal about 4–5 medium eggs depending on the recipe. For most baking, using 5 medium eggs where a recipe calls for 4 large is the safe choice. For savory cooking, a 1:1 swap works fine.
How many eggs are in ½ cup?
About 2 large whole eggs fill ½ cup. For egg whites, you'd need 3–4 large whites to reach ½ cup.
Can I use liquid egg products instead of shell eggs by the cup?
Yes — liquid whole eggs sold in cartons are designed to substitute 1:1 by volume. One large egg = ¼ cup (4 tablespoons) of liquid whole eggs. Check the carton label, as conversion ratios are usually printed on the packaging.
Does egg size matter for custards and baked goods?
For custards, crème brûlée, and tarts, yes — egg volume affects the set and texture significantly. Use the specified size or measure by volume. For cookies, cakes, and muffins, one size off rarely makes a noticeable difference.