Carbs in Rice Krispies Cereal
How many carbs are in rice krispies cereal?
Rice Krispies Cereal has 20.4g net carbs per 100g — 23.1g total carbs minus 2.7g fiber — plus 2g protein, 1g fat, and 110 calories. That makes rice krispies cereal high in net carbs and lower than the typical snacks and sweet, which averages about 55.2g net carbs per 100g. At this carb count, rice krispies cereal is best limited to small portions on keto (usually 20–50g net carbs per day). Values are per per 100 g, sourced from Open Food Facts; net carbs are computed by CarbMeNot.
Keeping an eye on carbs in rice krispies cereal?
Rice Krispies Cereal 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 rice krispies cereal keto-friendly?
Rice Krispies Cereal is generally not keto-friendly. It has 20.4g net carbs per 100g (23.1g total carbs − 2.7g 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) | 20.4g | 23.1g | 2g | 110 |
| 1 oz (28 g) | 5.7g | 6.5g | 0.6g | 31 |
How many calories are in rice krispies cereal?
Rice Krispies Cereal has 110 calories per 100g. That's alongside 2g protein, 1g fat, and 20.4g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 110 |
| Total carbs | 23.1g |
| Net carbs | 20.4g |
| Fiber | 2.7g |
| Sugar | 1g |
| Sugar alcohols | 0g |
| Protein | 2g |
| Fat | 1g |
| Sodium | 160mg |
| Potassium | 0mg |
Source: Open Food Facts (Kellogg’s). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in rice krispies cereal?
- Rice Krispies Cereal has 23.1g of total carbs and 20.4g of net carbs per 100 grams.
- How many net carbs are in rice krispies cereal?
- Rice Krispies Cereal has 20.4g of net carbs per 100 grams (total carbs 23.1g minus 2.7g fiber).
- Is rice krispies cereal keto-friendly?
- Rice Krispies Cereal is generally not keto-friendly. It has 20.4g net carbs per 100g (23.1g total carbs − 2.7g 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 rice krispies cereal?
- Rice Krispies Cereal has 110 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.