How Many Calories in Mayonnaise? Nutrition Facts & Macros

One tablespoon of mayonnaise (14 g) has 95 calories

Protein 0.1g · Carbs 0.1g · Fat 10.5g

Mayonnaise is a thick, creamy condiment made from oil, egg yolks, and an acid such as vinegar or lemon juice. It is one of the most calorie-dense condiments, with nearly 75% fat by weight. Popular in sandwiches, salads, and dips, mayonnaise adds richness but also significant calories. Here are the full nutrition facts for mayonnaise, based on USDA data. Mayonnaise is about 22% water by weight.

680 kcal

2845 kJ · per 100g · Water: 21.65 g

0.96g Protein

0.57g Carbs

74.85g Fat

Protein

0.96g

Carbs

0.57g

Fat

74.85g

Calorie Calculator: Mayonnaise

Amount

14 g

14 g Mayonnaise contains 95 kcal

Protein 0.1 g Carbs 0.1 g Fat 10.5 g

Calories by Portion Size

Portion	Calories	Protein	Carbs	Fat
1 tablespoon (13.8 g)	94 kcal	0.1g	0.1g	10.3g
1 packet (10 g)	68 kcal	0.1g	0.1g	7.5g
1 cup (220 g)	1496 kcal	2.1g	1.3g	164.7g
100 grams	680 kcal	1g	0.6g	74.9g

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Mayonnaise — Nutrition Facts

Mayonnaise	per 100g
Calories	680 kcal
Protein	0.96 g
Fat	74.85 g
Carbs	0.57 g
Fiber	0 g
Sugar	0.57 g
Sodium	635 mg
Potassium	20 mg
Magnesium	1 mg
Phosphorus	27 mg
Vitamin C	0 mg
Vitamin B6	0 mg
Folate	0 mcg
Manganese	0 mg
Water	21.65 g

Source: USDA FoodData Central (FDC ID: 171009) · Data verified April 2026

Variations

Regular mayonnaise (full fat)

680 calories per 100 g with 74.85 g fat and 0.96 g protein. The classic version made from oil, egg yolks, and vinegar. Richest flavor and thickest texture. Best for keto with virtually zero carbs.

Light mayonnaise

About 231 calories per 100 g with ~22 g fat -- roughly 66% fewer calories than regular. Water and modified starch replace some of the oil. Good for calorie counting, but may contain added sugars. Less ideal for keto due to higher carb content.

Low-calorie mayonnaise

About 213 calories per 100 g with ~19 g fat -- 69% fewer calories than regular. Even more water and thickeners than light mayo. Thinnest texture of all varieties. Best for strict calorie budgets but not recommended for keto due to added carbs from fillers.

Vegan mayonnaise (tofu-based)

About 315 calories per 100 g -- roughly 54% fewer calories than regular. Made with soy protein, aquafaba, or other plant-based emulsifiers instead of egg yolks. Lower fat (~30 g per 100 g) but may have more carbs (~4 g). Suitable for vegans and egg-allergy diets.

Dietary Perspectives

For Weight Loss

At 680 kcal per 100 g, mayonnaise is extremely calorie-dense. One tablespoon (14 g, ~95 kcal) adds nearly 100 calories to any sandwich or salad. Light mayonnaise (~231 kcal per 100 g) or low-calorie mayonnaise (~213 kcal per 100 g) saves about 50 kcal per tablespoon. For weight loss, measure portions strictly or consider mustard (66 kcal per 100 g) as a much lighter alternative.

For Keto

Mayonnaise is one of the best keto condiments. With only 0.57 g net carbs and 74.85 g fat per 100 g, it is almost pure fat with virtually zero carbs. A tablespoon (14 g) adds 10.5 g of fat with less than 0.1 g of carbs -- perfect for reaching your fat macro. Use it in egg salads, tuna salads, dressings, and dips. Always choose full-fat regular mayonnaise -- light and low-calorie versions contain added starch and sugars that increase carb count.

Frequently Asked Questions

How many calories are in mayonnaise?

One tablespoon (14 g) of regular mayonnaise has about 95 calories. Per 100 g, it contains 680 calories (2845 kJ). A single-serve packet (10 g) has about 68 calories. Light mayonnaise has roughly 231 kcal per 100 g, and low-calorie mayonnaise about 213 kcal per 100 g.

How much fat is in mayonnaise?

Regular mayonnaise contains 74.85 g of fat per 100 g -- it is almost entirely fat. One tablespoon (14 g) has about 10.5 g of fat. Light mayonnaise reduces fat to roughly 22 g per 100 g. If you are watching fat intake, measure carefully -- even a small spoonful adds up quickly.

Mayonnaise vs butter -- which has more calories?

Mayonnaise has 680 kcal per 100 g while butter has 717 kcal -- very similar. However, per tablespoon mayonnaise (14 g, ~95 kcal) has fewer calories than butter (14 g, ~100 kcal). The key difference: mayo has almost no carbs (0.57 g) and nearly 1 g of protein, while butter is virtually zero in both. As a spread, they are comparably calorie-dense.

Is mayonnaise keto-friendly?

Yes, mayonnaise is very keto-friendly. With only 0.57 g of net carbs per 100 g and 74.85 g of fat, it is one of the most keto-compatible condiments available. One tablespoon has virtually zero carbs. Use it in dressings, dips, and to add fat to meals. Stick to regular full-fat mayonnaise -- light versions may contain added sugar.

How many carbs are in mayonnaise?

Regular mayonnaise has just 0.57 g of carbs per 100 g -- essentially zero carbs. One tablespoon (14 g) has less than 0.1 g of carbs. This makes mayonnaise one of the lowest-carb condiments. Light or flavored mayonnaise may have slightly more carbs due to added sugars or starches.

Regular vs light mayonnaise -- what is the difference?

Regular mayonnaise: 680 kcal, 74.85 g fat per 100 g. Light mayonnaise: ~231 kcal, ~22 g fat per 100 g -- about 66% fewer calories. Light mayo uses water and starches to replace some of the oil, giving it a thinner texture. For keto, regular is better (fewer carbs). For calorie counting, light mayo saves about 50 calories per tablespoon.

Compare with Similar Foods

Portion	kcal	Protein	Carbs	Fat
Mayonnaise	680	0.96g	0.57g	74.85g
Butter	717	0.85g	0.06g	81.11g
Cream Cheese	350	6.15g	5.52g	34.44g
Sour Cream	193	2.07g	4.63g	19.35g
Olive Oil	884	0g	0g	100g

per 100g

Mayonnaise has 680 kcal per 100 g with 74.85 g of fat -- nearly as calorie-dense as butter (717 kcal). Compared to sour cream (193 kcal, 19.35 g fat), mayonnaise has over three times the calories.

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