⅓ cup of mayonnaise in grams
⅓ cup of mayonnaise ≈ 74 g = 2.6 oz · 79 mL by volume · at 221 g per cup, spooned and leveled. Use the converter below for any amount or ingredient.
Result: …
Formula
grams = cups × 221 (mayonnaise)
Why weight beats volume for mayonnaise
A cup is a volume; a recipe cares about mass. Mayonnaise runs about 221 g per US cup measured spoon-and-level, but packing, humidity, and grind can move that by ±10%. Weighing removes the guesswork, which is exactly why serious baking recipes list grams.
Mayonnaise: cups to grams table
| Amount | Grams | Ounces |
|---|---|---|
| ¼ cup | 55 g | 1.95 oz |
| ⅓ cup (this page) | 74 g | 2.6 oz |
| ½ cup | 111 g | 3.9 oz |
| ⅔ cup | 147 g | 5.2 oz |
| ¾ cup | 166 g | 5.85 oz |
| 1 cup | 221 g | 7.8 oz |
| 1½ cups | 332 g | 11.69 oz |
| 2 cups | 442 g | 15.59 oz |
| 3 cups | 663 g | 23.39 oz |
Frequently asked questions
How many grams is ⅓ cup of mayonnaise?
⅓ cup of mayonnaise is about 74 g (2.6 oz), based on 221 g per US cup, measured spoon-and-level.
Why does the ingredient change the answer?
Cups measure volume, grams measure weight. Dense ingredients pack more weight into the same cup: a cup of honey is 340 g while a cup of rolled oats is only 90 g. That is why generic cup-to-gram converters get recipes wrong.
Does it matter how I fill the cup?
Yes, these figures assume you spoon the ingredient into the cup and level it off. Scooping, packing, or tapping the cup can change the weight by 10% or more, which is why bakers prefer a scale.
Is this a US cup or a metric cup?
A US customary cup (236.6 mL). A metric cup is 250 mL, about 5.7% bigger, and old UK recipes use a 284 mL imperial cup. ⅓ cup here is 79 mL by volume.