Carbs in Mcdonalds Chocolate Sundae
How many carbs are in mcdonalds chocolate sundae?
Mcdonalds Chocolate Sundae has 15.1g net carbs per 100g — 17g total carbs minus 1.9g fiber — plus 5.2g protein, 11g fat, and 188 calories. That makes mcdonalds chocolate sundae moderate in net carbs and lower than the typical fast-food item, which averages about 26.5g net carbs per 100g. At this carb count, mcdonalds chocolate sundae is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Values per 100 g.
Is mcdonalds chocolate sundae keto-friendly?
Mcdonalds Chocolate Sundae is borderline for keto — it works only in small portions. It has 15.1g net carbs per 100g (17g total carbs − 1.9g fiber). On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 100 g (3.5 oz) | 15.1g | 17g | 5.2g | 188 |
| 1 oz (28 g) | 4.2g | 4.8g | 1.5g | 53 |
How many calories are in mcdonalds chocolate sundae?
Mcdonalds Chocolate Sundae has 188 calories per 100g. That's alongside 5.2g protein, 11g fat, and 15.1g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 188 |
| Total carbs | 17g |
| Net carbs | 15.1g |
| Fiber | 1.9g |
| Sugar | 13g |
| Sugar alcohols | 0g |
| Protein | 5.2g |
| Fat | 11g |
| Sodium | 48mg |
| Potassium | 0mg |
Source: Open Food Facts (Asda). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in mcdonalds chocolate sundae?
- Mcdonalds Chocolate Sundae has 17g of total carbs and 15.1g of net carbs per 100 grams.
- How many net carbs are in mcdonalds chocolate sundae?
- Mcdonalds Chocolate Sundae has 15.1g of net carbs per 100 grams (total carbs 17g minus 1.9g fiber).
- Is mcdonalds chocolate sundae keto-friendly?
- Mcdonalds Chocolate Sundae is borderline for keto — it works only in small portions. It has 15.1g net carbs per 100g (17g total carbs − 1.9g fiber). On a standard keto diet (20–50g net carbs per day), even one serving uses a large share of your daily carbs, so keep portions small or save it for a higher-carb day.
- How many calories are in mcdonalds chocolate sundae?
- Mcdonalds Chocolate Sundae has 188 calories per 100 grams.
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CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.