A recipe calls for 1/3 cup mayonnaise — how many grams is that?

1/3 cup × 220 g ≈ 73 g. Mayonnaise's smooth consistency means a level measuring cup gives an accurate, repeatable weight.

Why does mayonnaise weigh less per cup than sour cream, even though both are thick and creamy?

Mayonnaise is primarily oil (which is less dense than water) emulsified with a small amount of egg and vinegar, while sour cream is primarily dairy (close to water's density) — the higher oil content gives mayonnaise a slightly lower overall density, about 220 g versus 240 g per cup.

Mayonnaise: Cups to Grams Converter

Convert mayonnaise between cups, tablespoons, teaspoons, milliliters, grams, and ounces.

Ingredient

Amount

From

Mayonnaise: 220 Grams

Mayonnaise weighs about 220 g per cup, similar to brown sugar and somewhat lighter than sour cream, because it's an emulsion of oil and egg that incorporates a small amount of air during whipping. Like other thick, smooth condiments, it measures consistently by volume without the compaction issues of dry ingredients.

Common Amounts

Mayonnaise cups to grams
Cups	Grams
1/4 cups	55 g
1/3 cups	73 g
1/2 cups	110 g
3/4 cups	165 g
1 cup	220 g
2 cups	440 g

Frequently Asked Questions

Last reviewed: 2026-06-11 · Source: USDA FoodData Central / King Arthur Baking ingredient weight charts · see our methodology

All-Purpose Flour cups to grams Bread Flour cups to grams Whole Wheat Flour cups to grams Granulated Sugar cups to grams Brown Sugar (packed) cups to grams Powdered Sugar cups to grams Butter cups to grams Honey cups to grams

Mayonnaise: Cups to Grams Converter

Common Amounts

Frequently Asked Questions

Related Converters