How many carbs are in ice cream?
A standard half-cup serving of vanilla ice cream has about 16g of carbohydrate and 15g of net carbs. Most of those carbs are sugar, not starch.
Carbs by portion
| Portion | Total carbs | Fiber | Net carbs |
|---|---|---|---|
| 1/2 cup vanilla (66g) | 15.6g | 0.5g | 15.1g |
| 100 grams | 23.6g | 0.7g | 22.9g |
Net carbs
A half-cup of vanilla ice cream has about 15g of net carbs, computed as total carbs (15.6g) minus fiber (0.5g). Nearly all of the carbohydrate is sugar, so net carbs and total carbs are almost identical here. See the net carbs guide for when net vs. total matters.
Glycemic index of ice cream
The glycemic index of ice cream is about 57. Ice cream's fat content slows digestion, which keeps the glycemic index lower than you might expect for a food that is mostly sugar. Whole-fat versions tend to test lower than reduced-fat, which replace fat with more sugar or starch.
For diabetes
A half-cup of ice cream puts about 16g of fast-acting carbs on your plate, and nearly all of it is sugar. The fat slows gastric emptying, which can delay the glucose peak by 60 to 90 minutes, making it easy to stack a dose too early. Soft-serve and low-fat varieties often carry more sugar than the full-fat version because fat is replaced with sweetener. Count the total carbs on the label, not just the sugar line. Pair with your usual insulin-to-carb ratio and account for the fat-delayed peak in your timing. See the diabetes carb-counting guide.
Keto and low carb
A half-cup of vanilla ice cream has about 15g of net carbs, which uses up most or all of a strict keto budget of 20 to 30g per day. Standard ice cream does not fit keto. Purpose-made keto ice creams use erythritol or allulose and can have 2 to 5g of net carbs per serving, but you need to check the label on each brand.
Good to know
The half-cup serving on the nutrition label is smaller than what most people scoop. A generous home scoop runs closer to 100g, which is about 24g of carbs. Overrun, the air whipped into ice cream during churning, also varies by brand: a denser premium ice cream has more fat and carbs per cup than a lighter store-brand version of similar flavor. Flavors like cookie dough, birthday cake, or caramel swirl add meaningful extra sugar and starch on top of the base vanilla numbers.
Full nutrition (per 100g)
- Calories: 207.0 kcal
- Carbohydrate: 23.6g
- Fiber: 0.7g
- Sugars: 21.22g
- Protein: 3.5g
- Fat: 11.0g
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Get the appFrequently asked questions
How many carbs are in ice cream?
A standard half-cup serving of vanilla ice cream (66g) has about 16g of carbohydrate. A larger 100g scoop has about 24g of carbs.
How many net carbs are in ice cream?
A half-cup of vanilla ice cream has about 15g of net carbs. Fiber is minimal (0.5g), so net and total are nearly the same.
Does ice cream spike blood sugar?
Yes, but often more slowly than expected because fat delays digestion. The sugar still raises blood glucose, usually with a peak 60 to 90 minutes after eating rather than 30 to 45 minutes.
Is ice cream keto?
Standard ice cream is not keto. A half-cup has about 15g of net carbs, close to a full day's keto budget. Keto-branded alternatives made with erythritol or allulose can work if you verify the net carb count.
Does low-fat ice cream have fewer carbs?
Usually not. Low-fat ice cream often has more sugar than full-fat because the fat is replaced with sweetener or starch. Check the nutrition label rather than assuming low-fat means low-carb.