Carbs in One Corn on the Cob
How many carbs are in one corn on the cob?
One Corn on the Cob has 20.6g net carbs per 100g — 23.3g total carbs minus 2.7g fiber — plus 4.1g protein, 1.6g fat, and 110 calories. 1 medium ear (90g kernels) works out to about 18.5g net carbs and 99 calories. That makes one corn on the cob high in net carbs and about average for the typical vegetable, which averages about 18.1g net carbs per 100g. At this carb count, one corn on the cob 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.
Last updated June 10, 2026 · Reviewed by Jordan Lee, Nutrition Editor

Values per 100 g.
Is one corn on the cob keto-friendly?
One Corn on the Cob is generally not keto-friendly. It has 20.6g net carbs per 100g (23.3g total carbs − 2.7g fiber). A typical serving — 1 medium ear (90g kernels) — is about 18.5g 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 medium ear (90g kernels) | 18.5g | 21g | 3.7g | 99 |
| 100 g (3.5 oz) | 20.6g | 23.3g | 4.1g | 110 |
| 1 oz (28 g) | 5.8g | 6.5g | 1.1g | 31 |
How many calories are in one corn on the cob?
One Corn on the Cob has 110 calories per 100g. 1 medium ear (90g kernels) has about 99 calories. That's alongside 4.1g protein, 1.6g fat, and 20.6g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 110 |
| Total carbs | 23.3g |
| Net carbs | 20.6g |
| Fiber | 2.7g |
| Sugar | 3.9g |
| Sugar alcohols | 0g |
| Protein | 4.1g |
| Fat | 1.6g |
| Sodium | 19mg |
| Potassium | 361mg |
Source: Manufacturer-reported values (vegetables). Net carbs = total carbs − fiber − sugar alcohols, computed by CarbMeNot.
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Frequently asked questions
- How many carbs are in one corn on the cob?
- One Corn on the Cob has 23.3g of total carbs and 20.6g of net carbs per 100 grams.
- How many net carbs are in one corn on the cob?
- One Corn on the Cob has 20.6g of net carbs per 100 grams (total carbs 23.3g minus 2.7g fiber).
- Is one corn on the cob keto-friendly?
- One Corn on the Cob is generally not keto-friendly. It has 20.6g net carbs per 100g (23.3g total carbs − 2.7g fiber). A typical serving — 1 medium ear (90g kernels) — is about 18.5g 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 one corn on the cob?
- One Corn on the Cob has 110 calories per 100 grams.
- How many carbs are in 1 medium ear (90g kernels) of one corn on the cob?
- 1 medium ear (90g kernels) of one corn on the cob (90g) has about 18.5g net carbs, 21g total carbs, and 99 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.







