Carbs in Mayonnaise
Keto-friendlyMayonnaise (per 100 g) contains 0.3g total carbs, 0.3g net carbs, 77.8g fat, 0g protein, and 688 calories.
Last updated June 10, 2026 · Reviewed by Jordan Lee, RD, Registered Dietitian
0.3g
Net carbs
0.3g
Total carbs
0g
Fiber
0g
Protein
77.8g
Fat
688
Calories
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 0.3g | 0.3g | 0g | 688 |
| 1 oz (28 g) | 0.1g | 0.1g | 0g | 193 |
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 688 |
| Total carbs | 0.3g |
| Net carbs | 0.3g |
| Fiber | 0g |
| Sugar | 0.3g |
| Sugar alcohols | 0g |
| Protein | 0g |
| Fat | 77.8g |
| Sodium | 486mg |
| Potassium | 14mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
Log mayonnaise in one tap
Snap a photo and CarbMeNot's AI logs the carbs, protein, and fat automatically.
Frequently asked questions
- How many carbs are in mayonnaise?
- Mayonnaise has 0.3g of total carbs and 0.3g of net carbs per 100 grams.
- How many net carbs are in mayonnaise?
- Mayonnaise has 0.3g of net carbs per 100 grams (total carbs 0.3g minus 0g fiber).
- Is mayonnaise keto-friendly?
- Yes — with 0.3g net carbs per 100g, mayonnaise fits a ketogenic diet in normal portions.
- How many calories are in mayonnaise?
- Mayonnaise has 688 calories per 100 grams.
