How Many Calories Are in Corn on the Cob? | Crunch The Facts

You probably didn’t think twice about grabbing a second ear at the summer barbecue. Corn on the cob tastes sweet and feels like a treat, so it’s easy to assume it packs more calories than it actually does. The truth might surprise you, especially if you’ve been skipping corn while trying to manage your weight.

The quick answer is that a plain ear of corn is comparable to an apple in calories. The real variable isn’t the corn itself — it’s what you put on it. This article lays out the numbers for plain corn, then shows how butter, salt, and other toppings shift the total.

Where The 88 To 122 Calorie Range Comes From

Corn is a whole grain, and its calorie content depends mostly on ear size and kernel density. A small ear might land closer to 88 calories, while a large one can reach 122. The USDA figure of 122 calories per ear is one of the most commonly cited numbers in nutrition education materials.

More important than the exact count is that corn’s calories come mostly from carbohydrates, including a modest amount of fiber. One ear provides about 3 grams of fiber, which slows digestion and helps you feel full. That fiber changes the way your body handles those carbs.

The protein content is modest at roughly 3 grams per ear, and the fat content is minimal — around 1.4 grams — before any toppings are added. That makes plain corn a naturally low-fat, plant-based option that fits many eating patterns.

Why The Calorie Range Matters For Your Plate

If you see two different calorie numbers for corn on the cob online, neither is wrong — they’re just describing different ears. That 88-calorie figure tends to come from smaller or younger ears, while larger, more mature ears run higher. The gap matters most when you’re tracking calories closely.

A few common scenarios shift the total:

• Plain boiled or grilled corn: 88 to 122 calories per ear, depending on size. No added fat or sodium.
• With one tablespoon of butter: Adds roughly 100 calories and 11 grams of fat. Total climbs into the 190 to 220 range.
• Fast-food or restaurant corn: Often comes with butter, salt, and sometimes a seasoning blend. Totals can hit 155 to 170 calories per ear.
• Frozen corn on the cob: Pre-portioned and typically similar in calories to fresh, around 90 calories per 3-ounce serving.
• Canned or creamed corn: Not on the cob, but relevant for comparison — a half-cup serving is about 90 to 100 calories, often with added sugar or starch.

The takeaway is straightforward: plain corn is relatively low in calories, but the toppings you choose can double or nearly triple the total. Tracking that tablespoon of butter makes a bigger difference than worrying about which ear size you picked.

Corn On The Cob Vs. Other Sides

Comparing corn to other common side dishes helps put its calorie count in perspective. A medium ear of plain corn has about the same calories as a medium apple or half a cup of cooked rice. It is lower in calories than a baked potato with butter and sour cream, which can exceed 250 calories.

Per the USDA corn definition, fresh yellow or white corn is a vegetable that counts toward your daily produce intake. The USDA classifies it as both a vegetable and a whole grain, giving it a nutritional profile that bridges two food groups.

Side Dish	Serving Size	Approximate Calories
Plain corn on the cob	1 medium ear	88–122
Corn on the cob with butter	1 ear + 1 tbsp butter	190–220
Baked potato (plain)	1 medium	160
Baked potato with butter	1 medium + 1 tbsp butter	260
White rice (cooked)	1/2 cup	120
Steamed broccoli	1 cup	55

This comparison makes it clear that corn sits in the middle of the vegetable calorie spectrum. It is not the lowest-calorie vegetable, but it is also far from the highest when you leave off heavy toppings.

How To Estimate Calories Based On How You Eat Corn

The most reliable way to estimate calories for your specific ear is to consider its length and whether you’re adding anything. A 6-inch ear is on the smaller side, while an 8-inch ear is typical at grocery stores and farmers markets. You can use length as a rough proxy for calories.

1. Estimate the base ear size: A small ear (6 inches) runs about 90 calories, a medium ear (7 inches) around 105 calories, and a large ear (8+ inches) closer to 122.
2. Check for butter or oil: One pat of butter (1 teaspoon) adds about 35 calories. A full tablespoon adds about 100. If the corn looks shiny, count on at least a teaspoon.
3. Account for salt and seasonings: Plain salt adds zero calories. Spice blends, garlic butter, or cheese powder add variable calories — typically 10 to 30 per teaspoon.
4. Consider how it was cooked: Grilling over an open flame adds no calories. Boiling adds none either. Frying or sautéing kernels after cutting them off the cob adds oil calories.

If you’re ordering corn on the cob at a restaurant or fast-food place, assume the kitchen used butter unless the menu specifies otherwise. Fast-food versions often land around 155 to 170 calories per ear.

Nutrition Beyond Calories

Corn on the cob brings more to the table than just its calorie count. One ear provides about 25.8 mg of magnesium and 237 mg of potassium, according to Healthline’s 85 calories per ear breakdown. Both minerals support muscle function and blood pressure regulation.

Corn also contains lutein and zeaxanthin, two carotenoids that support eye health. The yellow varieties are especially rich in these compounds. The fiber content, around 2 to 3 grams per ear, helps with digestion and steady blood sugar response.

The carbohydrate content in one ear ranges from about 14 to 24 grams depending on size, with roughly 3 grams of that coming from fiber. That net carb count is moderate — comparable to a slice of bread or a half-cup of oatmeal. For most people, that fits comfortably into a balanced plate.

Nutrient	Per Medium Ear (approx.)
Calories	88–122
Carbohydrates	14–24 g
Fiber	2–3 g
Protein	3 g
Fat	1.4 g
Potassium	237 mg
Magnesium	25.8 mg

The Bottom Line

Corn on the cob is a moderate-calorie vegetable that fits naturally into most eating patterns, especially when you skip the butter. A plain ear compares well to an apple or a serving of rice, and the fiber and micronutrients make it a reasonable choice for weight management or general nutrition. The key is being honest about what goes on top.

If you track calories or carbohydrates closely, a registered dietitian can help you fit corn’s 88 to 122 calories into your specific daily targets without guesswork.