Carbs in Half Cup Granulated Sugar
How many carbs are in half cup granulated sugar?
Half Cup Granulated Sugar has 100g net carbs per 100g — 100g total carbs minus 0g fiber — plus 0g protein, 0g fat, and 387 calories. 1/2 cup granulated white sugar (100g) works out to about 100g net carbs and 387 calories. That makes half cup granulated sugar high in net carbs and higher than the typical snacks and sweet, which averages about 53.9g net carbs per 100g. At this carb count, half cup granulated sugar 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.
Keeping an eye on carbs in half cup granulated sugar?
Half Cup Granulated Sugar 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 half cup granulated sugar keto-friendly?
Half Cup Granulated Sugar is generally not keto-friendly. It has 100g net carbs per 100g (100g total carbs − 0g fiber). A typical serving — 1/2 cup granulated white sugar (100g) — is about 100g 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.
Carbs by serving size
| Serving | Net carbs | Total carbs | Protein | Calories |
|---|---|---|---|---|
| 1/2 cup granulated white sugar (100g) | 100g | 100g | 0g | 387 |
| 100 g (3.5 oz) | 100g | 100g | 0g | 387 |
| 1 oz (28 g) | 28g | 28g | 0g | 108 |
How many calories are in half cup granulated sugar?
Half Cup Granulated Sugar has 387 calories per 100g. 1/2 cup granulated white sugar (100g) has about 387 calories. That's alongside 0g protein, 0g fat, and 100g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 387 |
| Total carbs | 100g |
| Net carbs | 100g |
| Fiber | 0g |
| Sugar | 100g |
| Sugar alcohols | 0g |
| Protein | 0g |
| Fat | 0g |
| Sodium | 1mg |
| Potassium | 2mg |
Source: Manufacturer-reported values (other). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
Log half cup granulated sugar in one tap
Snap a photo and CarbMeNot's AI logs the carbs, protein, and fat automatically.
Frequently asked questions
- How many carbs are in half cup granulated sugar?
- Half Cup Granulated Sugar has 100g of total carbs and 100g of net carbs per 100 grams.
- How many net carbs are in half cup granulated sugar?
- Half Cup Granulated Sugar has 100g of net carbs per 100 grams (total carbs 100g minus 0g fiber).
- Is half cup granulated sugar keto-friendly?
- Half Cup Granulated Sugar is generally not keto-friendly. It has 100g net carbs per 100g (100g total carbs − 0g fiber). A typical serving — 1/2 cup granulated white sugar (100g) — is about 100g 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 half cup granulated sugar?
- Half Cup Granulated Sugar has 387 calories per 100 grams.
- How many carbs are in 1/2 cup granulated white sugar (100g)?
- 1/2 cup granulated white sugar (100g) (100g) has about 100g net carbs, 100g total carbs, and 387 calories.
Similar foods
CarbMeNot provides general nutrition information, not medical advice. Values are estimates — verify before relying on them for any health decision. See our Medical Disclaimer.