How many carbs are in soda?
A 12-oz can of regular cola (370g) has about 38g of carbohydrate and 38g of net carbs. Soda is nearly pure added sugar with no fiber, protein, or fat.
Carbs by portion
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1 can (12 fl oz / 370g) | 38.3g | 0.0g | 38.3g |
| 1 fl oz (30g) | 3.2g | 0.0g | 3.2g |
| 100 grams | 10.4g | 0.0g | 10.4g |
Net carbs
A 12-oz can of soda has about 38g of net carbs, entirely from added sugar. There is no fiber. See the net carbs guide.
Glycemic index of soda
The glycemic index of soda is about 63. Regular cola has a moderate glycemic index. The high-fructose corn syrup (approximately 55% fructose) is metabolized more slowly than pure glucose, which lowers the GI compared to a pure glucose drink.
For diabetes
A 12-oz can of regular soda has 38g of pure added sugar and no offsetting fiber. The carbs absorb rapidly. Soda is one of the fastest routes to a blood sugar spike outside of glucose tablets. Diet soda has zero carbs but should be used thoughtfully, as some research suggests it may affect insulin response. See the diabetes carb-counting guide.
Keto and low carb
A 12-oz can of regular soda has 38g of carbs and is completely incompatible with keto. Diet soda has zero carbs and is commonly used in keto plans.
Good to know
A 12-oz can of Coca-Cola has 39g of sugar; a Pepsi has 41g. The exact carb count varies by brand. A 20-oz bottle has about 65g of carbs. A 44-oz fountain drink has about 130g of carbs, over three full days of keto budget in one cup. Sports drinks like Gatorade are not soda but carry similar carb counts (21g per 12 oz for the original formula).
Full nutrition (per 100g)
- Calories: 42.0 kcal
- Carbohydrate: 10.36g
- Fiber: 0.0g
- Sugars: 9.94g
- Protein: 0.0g
- Fat: 0.25g
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Get the appFrequently asked questions
How many carbs are in soda?
A 12-oz can of regular cola has about 38g of carbohydrate. A 20-oz bottle has about 65g.
Does diet soda have carbs?
No. Diet sodas sweetened with aspartame, sucralose, or stevia have zero carbs.
Is soda keto?
Regular soda is not. A 12-oz can has 38g of carbs. Diet soda has zero carbs and is keto-compatible.
How much sugar is in a 12-oz can of soda?
About 37 to 41g of sugar depending on the brand. Coca-Cola has 39g, Pepsi has 41g.
How many carbs are in a large fountain soda?
A 44-oz large fountain soda has about 130g of carbs, equivalent to 3 to 4 days of keto carb budget.