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How Much Is 1 Tablespoon of Mayonnaise in Ounces?

1 tablespoon of mayonnaise weighs 0.49 oz. This is based on mayonnaise having a density of 220g per cup. Because tablespoons measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 1 tablespoon.

1 tablespoon of mayonnaise
=
0.49oz
Result using all tablespoon standards info
0.49 oz (US) 0.49 oz (Metric Tablespoon) 0.66 oz (Australian Tablespoon)
1 tablespoon of mayonnaise is also
0.49

Formula and Step-by-Step

tablespoons × 13.75g/tbsp ÷ 28.3495g/oz = ounces
  1. Start with 1 tablespoon of mayonnaise
  2. 1 tablespoon of mayonnaise = 13.75g
  3. 1 × 13.75 = 13.75g
  4. Convert grams to ounces: 13.75 ÷ 28.3495 = 0.49 oz

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Mayonnaise should be spooned into the measuring spoon and leveled off. Do not scoop directly from the jar, which traps air.

Mayonnaise at Different Amounts

How mayonnaise scales across common tablespoons measurements. Your amount (1 tablespoon) is highlighted.

1 tbsp0.49 oz2 tbsp0.97 oz3 tbsp1.46 oz4 tbsp1.94 oz5 tbsp2.43 oz6 tbsp2.91 oz8 tbsp3.88 oz10 tbsp4.85 oz

For reference, 1 tablespoon of mayonnaise (13.75g) is close in weight to a tablespoon of sugar (12.5g).

Other Amounts of Mayonnaise

Tablespoons US Ounces Metric Tablespoon Australian Tablespoon
1 tablespoon 0.49 oz 0.49 oz 0.66 oz
2 tablespoons 0.97 oz 0.98 oz 1.31 oz
3 tablespoons 1.46 oz 1.48 oz 1.97 oz
4 tablespoons 1.94 oz 1.97 oz 2.62 oz
5 tablespoons 2.43 oz 2.46 oz 3.28 oz
6 tablespoons 2.91 oz 2.95 oz 3.94 oz
8 tablespoons 3.88 oz 3.94 oz 5.25 oz
10 tablespoons 4.85 oz 4.92 oz 6.56 oz
12 tablespoons 5.82 oz 5.90 oz 7.87 oz
16 tablespoons 7.76 oz 7.87 oz 10.50 oz

Understanding the Units

What is a Tablespoon?

One tablespoon holds about 15 milliliters. There are 16 tablespoons in a cup and 3 teaspoons in a tablespoon. In baking, tablespoon measurements are used for butter, oil, honey, and other ingredients where a full cup would be too much.

What is an Ounce?

Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.

Frequently Asked Questions

About 0.49 oz, based on mayonnaise having a density of 220g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of tablespoons by 13.75 (grams per tablespoon for mayonnaise), then divide by 28.3495 to convert grams to ounces. For 1 tablespoon: 1 × 13.75 = 13.75g, then 13.75 ÷ 28.3495 = 0.49 oz.
For the most accurate results, weigh mayonnaise on a kitchen scale. If measuring by volume, spoon the ingredient into the measuring spoon and level it off with a straight edge rather than scooping directly.
Fat content has a small effect on density. Higher-fat versions are slightly lighter per volume because fat is less dense than water. The difference is usually under 5%, so this conversion works well for standard varieties.
Reverse the conversion: 0.49 oz × 28.3495 = 13.75g, then 13.75g ÷ 13.75 = 1 tablespoon. Or use the Ounces to Tablespoons converter.