Reese's Peanut Butter Cup (Single) Calories & Carbs
Keto-friendlyLast updated September 8, 2026 · Compiled by the CarbMeNot Team
Values per 1 cup (17g), 17g; per 100 g: 52.9g net carbs, 471 cal. Net carbs = total carbs − fiber − sugar alcohols — do the math for any label with the free net carbs calculator.
How many carbs are in reese's peanut butter cup (single)?
Reese's Peanut Butter Cup (Single) — 1 cup (17g), 17g — has 9g net carbs: 9g total carbs minus 0g fiber, plus 2g protein, 5g fat, and 80 calories. Per 100g that is 52.9g net carbs (52.9g total carbs, 0g fiber) and 471 calories. That makes reese's peanut butter cup (single) high in net carbs and higher than the typical dairy food, which averages about 24.2g net carbs per 100g. With this carb count, reese's peanut butter cup (single) fits a keto or low-carb diet (usually 20–50g net carbs per day) in normal portions. Values are per 100 g, sourced from Manufacturer-reported values; net carbs are computed by CarbMeNot.
Is reese's peanut butter cup (single) keto-friendly?
Reese's Peanut Butter Cup (Single) is borderline for keto — it works only in small portions. 1 cup (17g), 17g is 9g net carbs (9g total carbs − 0g fiber); per 100g that is 52.9g net carbs. 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.
Tracking reese's peanut butter cup (single) on keto?
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Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1 cup (17g) | 9g | 9g | 2g | 80 |
| 100 g (3.5 oz) | 52.9g | 52.9g | 11.8g | 471 |
| 1 oz (28 g) | 14.8g | 14.8g | 3.3g | 132 |
How many calories are in reese's peanut butter cup (single)?
Reese's Peanut Butter Cup (Single) — 1 cup (17g), 17g — has 80 calories, with 2g protein, 5g fat, and 9g net carbs. Per 100g: 471 calories and 52.9g net carbs.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 471 |
| Total carbs | 52.9g |
| Net carbs | 52.9g |
| Fiber | 0g |
| Sugar | 47.1g |
| Sugar alcohols | 0g |
| Protein | 11.8g |
| Fat | 29.4g |
| Sodium | 441mg |
| Potassium | 353mg |
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 reese's peanut butter cup (single)?
- Reese's Peanut Butter Cup (Single) (1 cup (17g), 17g) has 9g of total carbs and 9g of net carbs. Per 100 grams: 52.9g total, 52.9g net.
- How many net carbs are in reese's peanut butter cup (single)?
- Reese's Peanut Butter Cup (Single) has 9g of net carbs per 1 cup (17g), 17g — 9g total carbs minus 0g fiber.
- Is reese's peanut butter cup (single) keto-friendly?
- Reese's Peanut Butter Cup (Single) is borderline for keto — it works only in small portions. 1 cup (17g), 17g is 9g net carbs (9g total carbs − 0g fiber); per 100g that is 52.9g net carbs. 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 reese's peanut butter cup (single)?
- Reese's Peanut Butter Cup (Single) (1 cup (17g), 17g) has 80 calories; that is 471 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.