Carbs in Brown Sugar 1 Cup
How many carbs are in brown sugar 1 cup?
Brown Sugar 1 Cup has 98.1g net carbs per 100g — 98.1g total carbs minus 0g fiber — plus 0.1g protein, 0g fat, and 380 calories. That makes brown sugar 1 cup high in net carbs and higher than the typical snacks and sweet, which averages about 55.2g net carbs per 100g. At this carb count, brown sugar 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.
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Brown Sugar 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 brown sugar 1 cup keto-friendly?
Brown Sugar 1 Cup is generally not keto-friendly. It has 98.1g net carbs per 100g (98.1g total carbs − 0g 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) | 98.1g | 98.1g | 0.1g | 380 |
| 1 oz (28 g) | 27.5g | 27.5g | 0g | 106 |
How many calories are in brown sugar 1 cup?
Brown Sugar 1 Cup has 380 calories per 100g. That's alongside 0.1g protein, 0g fat, and 98.1g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 380 |
| Total carbs | 98.1g |
| Net carbs | 98.1g |
| Fiber | 0g |
| Sugar | 97g |
| Sugar alcohols | 0g |
| Protein | 0.1g |
| Fat | 0g |
| Sodium | 28mg |
| Potassium | 133mg |
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 brown sugar 1 cup?
- Brown Sugar 1 Cup has 98.1g of total carbs and 98.1g of net carbs per 100 grams.
- How many net carbs are in brown sugar 1 cup?
- Brown Sugar 1 Cup has 98.1g of net carbs per 100 grams (total carbs 98.1g minus 0g fiber).
- Is brown sugar 1 cup keto-friendly?
- Brown Sugar 1 Cup is generally not keto-friendly. It has 98.1g net carbs per 100g (98.1g total carbs − 0g 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 brown sugar 1 cup?
- Brown Sugar 1 Cup has 380 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.