Carbs in Corn on the Cob
How many carbs are in corn on the cob?
Corn on the Cob has 18.9g net carbs per 100g — 21.1g total carbs minus 2.2g fiber — plus 3.3g protein, 1.1g fat, and 89 calories. 1 medium ear (about 6.75 inches) works out to about 17g net carbs and 80 calories. That makes corn on the cob moderate in net carbs and about average for the typical vegetable, which averages about 17.8g net carbs per 100g. At this carb count, 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.
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Corn on the Cob 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 corn on the cob keto-friendly?
Corn on the Cob is borderline for keto — it works only in small portions. It has 18.9g net carbs per 100g (21.1g total carbs − 2.2g fiber). A typical serving — 1 medium ear (about 6.75 inches) — is about 17g 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 (about 6.75 inches) | 17g | 19g | 3g | 80 |
| 100 g (3.5 oz) | 18.9g | 21.1g | 3.3g | 89 |
| 1 oz (28 g) | 5.3g | 5.9g | 0.9g | 25 |
How many calories are in corn on the cob?
Corn on the Cob has 89 calories per 100g. 1 medium ear (about 6.75 inches) has about 80 calories. That's alongside 3.3g protein, 1.1g fat, and 18.9g net carbs per 100g.
Nutrition facts
| Nutrient | Amount (per 100 g) |
|---|---|
| Calories | 89 |
| Total carbs | 21.1g |
| Net carbs | 18.9g |
| Fiber | 2.2g |
| Sugar | 5.6g |
| Sugar alcohols | 0g |
| Protein | 3.3g |
| Fat | 1.1g |
| Sodium | 0mg |
| Potassium | 270mg |
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 corn on the cob?
- Corn on the Cob has 21.1g of total carbs and 18.9g of net carbs per 100 grams.
- How many net carbs are in corn on the cob?
- Corn on the Cob has 18.9g of net carbs per 100 grams (total carbs 21.1g minus 2.2g fiber).
- Is corn on the cob keto-friendly?
- Corn on the Cob is borderline for keto — it works only in small portions. It has 18.9g net carbs per 100g (21.1g total carbs − 2.2g fiber). A typical serving — 1 medium ear (about 6.75 inches) — is about 17g 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 corn on the cob?
- Corn on the Cob has 89 calories per 100 grams.
- How many carbs are in 1 medium ear (about 6.75 inches) of corn on the cob?
- 1 medium ear (about 6.75 inches) of corn on the cob (90g) has about 17g net carbs, 19g total carbs, and 80 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.