Carbs in McDonald's Hot Fudge Sundae
How many carbs are in mcdonald's hot fudge sundae?
McDonald's Hot Fudge Sundae has 29.6g net carbs per 100g — 30.2g total carbs minus 0.6g fiber — plus 3.9g protein, 6.1g fat, and 186 calories. 1 sundae (179g) works out to about 53g net carbs and 333 calories. That makes mcdonald's hot fudge sundae high in net carbs and about average for the typical fast-food item, which averages about 27.1g net carbs per 100g. At this carb count, mcdonald's hot fudge sundae is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
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Free · no signup · ★ 4.7Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 sundae (179g) | 53g | 54.1g | 7g | 333 |
| 100 g (3.5 oz) | 29.6g | 30.2g | 3.9g | 186 |
| 1 oz (28 g) | 8.3g | 8.5g | 1.1g | 52 |
How many calories are in mcdonald's hot fudge sundae?
McDonald's Hot Fudge Sundae has 186 calories per 100g. 1 sundae (179g) has about 333 calories. That's alongside 3.9g protein, 6.1g fat, and 29.6g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 186 |
| Total carbs | 30.2g |
| Net carbs | 29.6g |
| Fiber | 0.6g |
| Sugar | 26.8g |
| Sugar alcohols | 0g |
| Protein | 3.9g |
| Fat | 6.1g |
| Sodium | 94mg |
| Potassium | 246mg |
Source: Manufacturer-reported values (snacks-sweets). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in mcdonald's hot fudge sundae?
- McDonald's Hot Fudge Sundae has 30.2g of total carbs and 29.6g of net carbs per 100 grams.
- How many net carbs are in mcdonald's hot fudge sundae?
- McDonald's Hot Fudge Sundae has 29.6g of net carbs per 100 grams (total carbs 30.2g minus 0.6g fiber).
- Is mcdonald's hot fudge sundae keto-friendly?
- McDonald's Hot Fudge Sundae has 29.6g net carbs per 100g, which is high for keto. Enjoy it in small portions or save it for higher-carb days.
- How many calories are in mcdonald's hot fudge sundae?
- McDonald's Hot Fudge Sundae has 186 calories per 100 grams.
- How many carbs are in 1 sundae (179g)?
- 1 sundae (179g) (179g) has about 53g net carbs, 54.1g total carbs, and 333 calories.
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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.