Carbs in 12 Grams of Sugar

How many carbs are in 12 grams of sugar?

12 Grams of Sugar has 100g net carbs per 100g — 100g total carbs minus 0g fiber — plus 0g protein, 0g fat, and 383 calories. 12g (12g) works out to about 12g net carbs and 46 calories. That makes 12 grams of sugar high in net carbs and higher than the typical snacks and sweet, which averages about 55.7g net carbs per 100g. At this carb count, 12 grams of 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.

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Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

12 Grams of Sugar
100g
Net carbs
100g
Total carbs
0g
Fiber
0g
Protein
0g
Fat
383
Calories

Values per 100 g.

Is 12 grams of sugar keto-friendly?

Not really

12 Grams of Sugar is generally not keto-friendly. It has 100g net carbs per 100g (100g total carbs − 0g fiber). A typical serving — 12g (12g) — is about 12g 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

ServingNet carbsTotal carbsCalories
12g12g12g46
100 g (3.5 oz)100g100g383
1 oz (28 g)28g28g107

How many calories are in 12 grams of sugar?

12 Grams of Sugar has 383 calories per 100g. 12g (12g) has about 46 calories. That's alongside 0g protein, 0g fat, and 100g net carbs per 100g.

Nutrition facts

NutrientAmount (per 100 g)
Calories383
Total carbs100g
Net carbs100g
Fiber0g
Sugar100g
Sugar alcohols0g
Protein0g
Fat0g
Sodium0mg
Potassium0mg

Source: Manufacturer-reported values (other). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.

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Frequently asked questions

How many carbs are in 12 grams of sugar?
12 Grams of Sugar has 100g of total carbs and 100g of net carbs per 100 grams.
How many net carbs are in 12 grams of sugar?
12 Grams of Sugar has 100g of net carbs per 100 grams (total carbs 100g minus 0g fiber).
Is 12 grams of sugar keto-friendly?
12 Grams of Sugar is generally not keto-friendly. It has 100g net carbs per 100g (100g total carbs − 0g fiber). A typical serving — 12g (12g) — is about 12g 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 12 grams of sugar?
12 Grams of Sugar has 383 calories per 100 grams.
How many carbs are in 12g of 12 grams of sugar?
12g of 12 grams of sugar (12g) has about 12g net carbs, 12g total carbs, and 46 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.