Carbs in Mashed Potatoes 1 Cup
How many carbs are in mashed potatoes 1 cup?
Mashed Potatoes 1 Cup has 11.4g net carbs per 100g — 13.3g total carbs minus 1.9g fiber — plus 2g protein, 5g fat, and 106 calories. That makes mashed potatoes 1 cup moderate in net carbs and lower than the typical vegetable, which averages about 17.9g net carbs per 100g. At this carb count, mashed potatoes 1 cup is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from USDA FoodData Central; net carbs are computed by CarbMeNot.
Keeping an eye on carbs in mashed potatoes 1 cup?
Mashed Potatoes 1 Cup runs higher in carbs, so portions matter. CarbMeNot tracks every gram from a photo, so you stay under your daily limit without the math.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor
Values per 100 g.
Is mashed potatoes 1 cup keto-friendly?
Mashed Potatoes 1 Cup is borderline for keto — it works only in small portions. It has 11.4g net carbs per 100g (13.3g 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) | 11.4g | 13.3g | 2g | 106 |
| 1 oz (28 g) | 3.2g | 3.7g | 0.6g | 30 |
How many calories are in mashed potatoes 1 cup?
Mashed Potatoes 1 Cup has 106 calories per 100g. That's alongside 2g protein, 5g fat, and 11.4g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 106 |
| Total carbs | 13.3g |
| Net carbs | 11.4g |
| Fiber | 1.9g |
| Sugar | 1.8g |
| Sugar alcohols | 0g |
| Protein | 2g |
| Fat | 5g |
| Sodium | 298mg |
| Potassium | 274mg |
Source: USDA FoodData Central (SR Legacy). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in mashed potatoes 1 cup?
- Mashed Potatoes 1 Cup has 13.3g of total carbs and 11.4g of net carbs per 100 grams.
- How many net carbs are in mashed potatoes 1 cup?
- Mashed Potatoes 1 Cup has 11.4g of net carbs per 100 grams (total carbs 13.3g minus 1.9g fiber).
- Is mashed potatoes 1 cup keto-friendly?
- Mashed Potatoes 1 Cup is borderline for keto — it works only in small portions. It has 11.4g net carbs per 100g (13.3g 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 mashed potatoes 1 cup?
- Mashed Potatoes 1 Cup has 106 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.