Convert Mayonnaise from Cup (US) to Ounces

How many ounces is 1 US cup of mayonnaise?

1 US cup of mayonnaise (mayo) is 7.79 ounces. 2 US cups of mayonnaise is 15.57 ounces. 1/2 US cup of mayonnaise is 3.89 ounces. 1/4 US cup (0.25 US cup) of mayonnaise is 1.95 ounces. Use the converter below for any amount.

Mayonnaise is a thick emulsion of oil, egg yolk, and an acid such as vinegar or lemon juice. One metric cup (250 ml) weighs around 230 grams or 8.11 ounces. Most cooks reach for it as a sandwich spread or salad dressing base, but it also keeps cakes and quick breads moist when used in place of oil or sour cream.

Jars of mayonnaise are sold by volume in millilitres or by weight in grams, while recipes mix cups, tablespoons, and grams. Converting between the three saves you over-spooning into a chocolate cake batter that calls for half a cup.

Also known as

  • mayo
  • real mayonnaise

Sour cream is tangier and slightly heavier than mayonnaise (250 g vs 230 g per cup). They swap 1:1 in dressings, slaws, and dips, with mayonnaise giving a richer, less tangy result. In cake batters that lean on sour cream for tenderness, mayonnaise is a workable stand-in since both are mostly fat and water. See what 1 US cup of sour cream is in ounces.

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Mayonnaise Measurement Converter

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Result

7.79 Ounces

Common Mayonnaise Conversions

Here are the most common mayonnaise conversions from cups (US) to ounces.

Cups (US)Ounces
0.25 cups (US)1.95 oz
0.5 cups (US)3.89 oz
0.75 cups (US)5.84 oz
1 cup (US)7.79 oz
1.25 cups (US)9.73 oz
1.5 cups (US)11.68 oz
2 cups (US)15.57 oz
2.5 cups (US)19.46 oz
3 cups (US)23.36 oz

Mayonnaise Conversion Chart

The conversion chart below gives a quick reference for converting mayonnaise from Cup (US) to Ounces and other measurements.

cup(US)ouncescupgramstbsptsp
0.25 cup (US)1.95 oz0.24 cup55.2 g4 tbsp12 tsp
0.5 cup (US)3.89 oz0.48 cup110.4 g8 tbsp24 tsp
1 cup (US)7.79 oz0.96 cup220.8 g16 tbsp48 tsp
2 cup (US)15.57 oz1.92 cup441.6 g32 tbsp96 tsp

For the reverse conversion, see 1 ounce of mayonnaise in US cups.

Frequently Asked Questions

What is 1 US cup of mayonnaise in ounces?
1 US cup of mayonnaise is 7.79 ounces. The ratio is fixed, so 2 US cups of mayonnaise is 15.57 ounces and 0.5 US cups is 3.89 ounces. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the mayonnaise converter
How many ounces is 1.5 US cups of mayonnaise?
1.5 US cups of mayonnaise is 11.68 ounces. The ratio is fixed, so 1 US cup of mayonnaise is 7.79 ounces and 2 US cups is 15.57 ounces. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 US cups of mayonnaise in ounces?
2 US cups of mayonnaise is 15.57 ounces. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 US cup of mayonnaise is 7.79 ounces, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact ounces reading.
How many US cups of mayonnaise is 7.79 ounces?
7.79 ounces of mayonnaise is 1 US cup. The conversion works the same in reverse, so you can switch between ounces and US cups without changing the result. This helps when a recipe lists US cups but you would rather weigh or measure in ounces. The converter above and the chart below cover both directions for any amount.
How much is 1 US cup of mayo in ounces?
Mayo is another name for mayonnaise, so 1 US cup of mayo is 7.79 ounces, exactly the same as mayonnaise. The figure does not change with the name: 2 US cups is 15.57 ounces and 0.5 US cups is 3.89 ounces. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are mayonnaise and mayo the same thing?
Yes. Mayo is another name for mayonnaise, so they are the same ingredient and convert identically. 1 US cup of mayonnaise is 7.79 ounces under either name, and 2 US cups is 15.57 ounces. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 cup (US) mayonnaise in ounces?
1/2 US cup of mayonnaise is 3.89 ounces. The ratio is fixed, so 1 US cup of mayonnaise is 7.79 ounces and 2 US cups is 15.57 ounces. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
What is 1/4 cup (US) mayonnaise in ounces?
1/4 US cup (0.25 US cup) of mayonnaise is 1.95 ounces. The ratio is fixed, so 1 US cup of mayonnaise is 7.79 ounces and 2 US cups is 15.57 ounces. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

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