How do I substitute different egg sizes?

Match the total egg volume, not the count. Average shelled weights are about 38g small, 44g medium, 50g large, 56g extra-large and 63g jumbo. So three large eggs (≈150g) equal roughly three to four medium eggs.

Does egg size matter in baking?

Yes, especially in cakes and custards where liquid balance matters. For one or two eggs the difference is small, but across four or more it adds up. Beat and measure the egg if you need to be precise.

Is anything uploaded?

No. All calculations run locally in your browser.

Egg Size Substitution Calculator

Swap small, medium, large or jumbo eggs in any recipe.

Egg size substitution

Most recipes assume large eggs, but fridges hold whatever the shop had. The trick to swapping sizes is to match total egg volume rather than the number of eggs — average shelled weights run from about 38g (small) to 63g (jumbo).

Set the size the recipe wants, the size you actually have, and the count, and this tool tells you how many to use. For four or more eggs the difference matters most; beat and weigh the egg if a recipe needs precision.