How Much Calories Does Corn Have? | What Counts Per Ear

One medium ear of sweet corn has about 77 to 100 calories, while 100 grams of kernels usually land near 86 to 96 calories.

Corn is one of those foods that sounds simple until you try to pin down the calories. An ear of corn, a cup of kernels, canned corn, frozen corn, creamed corn, and popcorn all come from the same crop, yet they don’t land in the same calorie range.

If you want the straight answer, fresh sweet corn is moderate in calories. It gives you more energy than watery vegetables like lettuce or cucumber, but far less than dense starches such as rice, pasta, or cornbread. That makes corn easy to fit into a meal when you know the portion.

The part that trips people up is serving size. A small ear and a large ear are not even close. Add butter, cheese, oil, or sugar, and the number moves fast. So the smart way to read corn calories is by form, portion, and what gets added after cooking.

How Much Calories Does Corn Have By Serving Size?

For plain sweet corn, the calorie range stays pretty steady. Raw sweet corn kernels from the USDA food database sit at about 86 calories per 100 grams. Cooked sweet corn tends to land a bit higher, often near the mid-90s per 100 grams once water balance shifts during cooking.

That means one medium ear often falls around 77 to 100 calories, while one cup of kernels can push into the 130 to 150 range. If you slice corn off the cob and pile it into a bowl, the count climbs faster than many people expect.

Fresh Corn On The Cob

Fresh corn on the cob is the version most people mean when they ask about corn calories. On its own, it is not a heavy food. The cob itself adds no calories because you don’t eat it. Only the kernels count.

A small ear can feel like a light side dish. A big summer ear can act more like a starch serving. If you eat two ears at a cookout, you may be closer to the calorie total of a baked potato than a low-calorie vegetable side.

Why Corn Calories Vary

Three things shift the number most:

• Size: a short ear and a long ear are not equal.
• Preparation: boiled, grilled, canned, creamed, and popped corn all differ.
• Add-ons: butter, mayo, oil, sugar, and cheese can dwarf the calories in the kernels.

That last point matters most. Plain corn is one thing. Street corn, buttered corn, kettle corn, and cheesy corn casseroles are another story.

What Changes The Calorie Count The Most

The corn itself brings carbohydrate, a little fiber, and a small amount of protein. According to USDA FoodData Central, sweet corn kernels sit in a moderate calorie zone for a starchy vegetable. The number is not wild on its own. Toppings are where the math starts to swing.

Butter adds pure fat. Oil does the same. Creamed corn can bring extra sugar or cream, depending on the recipe. Popcorn can stay light when it is air-popped, yet movie-style popcorn can turn into a much heavier snack once oil and buttery topping get involved.

Packaged corn also needs a closer look. The FDA’s calories guidance on the Nutrition Facts label makes the serving size the first thing to check. A can may look like one side dish, though the label may split it into more than one serving.

That is why two products that both say “corn” can land far apart. One may be plain kernels in water. The other may be creamed corn with sweeteners and starch. Same name family. Different calorie hit.

Type Of Corn	Usual Portion	Calories
Sweet corn, raw kernels	100 g	About 86
Sweet corn, cooked kernels	100 g	About 96
Sweet corn, small ear	1 ear	About 60 to 70
Sweet corn, medium ear	1 ear	About 77 to 100
Sweet corn, large ear	1 ear	About 110 to 125
Corn kernels	1 cup	About 130 to 150
Canned corn, drained	100 g	About 65 to 75
Creamed corn	100 g	About 70 to 100
Air-popped popcorn	1 cup	About 30 to 35

Is Corn High In Calories Or Pretty Moderate?

Corn sits in the middle. It is not a low-calorie freebie like celery. It is not a heavy starch bomb either. That makes it useful when you want a side dish with more bite and more staying power than leafy vegetables, but you still want the meal under control.

From a meal-building angle, corn fits best when you treat it as your starch or one of your starches. If you pair corn with rice, bread, fries, and a sweet drink, the whole plate climbs fast. If corn stands in for one of those, the balance looks better.

That lines up with the way MyPlate groups vegetables. Corn falls into the starchy vegetable group, so it makes sense to count it more like peas or potatoes than watery salad greens.

Best Picks If You Want Fewer Calories

• Boiled or steamed corn with salt, pepper, and lime
• Grilled corn with dry spices instead of butter-heavy sauces
• Canned or frozen kernels with little added fat
• Air-popped popcorn instead of buttered popcorn

Versions That Climb Fast

• Mexican street corn with mayo, cheese, and butter
• Creamed corn with sugar and cream
• Movie popcorn with buttery topping
• Corn casseroles made with cheese, sour cream, or cornbread mix

Plain Corn Vs Topped Corn

People often blame the corn when the topping is the real calorie driver. A medium ear of plain corn may sit under 100 calories. Add a tablespoon of butter and you tack on close to another 100. Add mayo and cheese, and the total can double or more.

That does not mean you need to eat dry corn forever. It just means the topping should match the goal. If you want a lighter plate, go with chili powder, lime, garlic, black pepper, or a dusting of parmesan instead of a thick coating of fat.

Serving	What Is Added	Rough Total Calories
1 medium ear, plain	No topping	About 77 to 100
1 medium ear	1 tablespoon butter	About 175 to 200
1 medium ear	Mayo and cheese	About 220 to 300
3 cups popcorn	Air-popped, plain	About 90 to 105
3 cups popcorn	Oil and buttery topping	About 150 to 250+

Smart Ways To Read Corn Calories

If your goal is accuracy, use one of these checks instead of guessing:

1. Read the serving size before the calories.
2. Measure kernels by cup or grams when you can.
3. Count added fats on top of the corn, not just the corn itself.
4. Treat corn as a starchy side, not a free extra.
5. For popcorn, check whether it was air-popped or cooked in oil.

That last one matters a lot. Popcorn sounds light because it takes up so much room. Plain air-popped popcorn is light for its volume. Oil-popped or butter-heavy popcorn is a different snack.

Where Corn Fits In A Meal

Corn works best when the rest of the plate is built around it. A grilled chicken breast, fish, beans, or eggs pair well with corn because they bring protein while corn fills the starch slot. Add one non-starchy vegetable and the meal feels balanced without getting fussy.

If you are tracking calories, the cleanest move is simple: pick your portion before you dress it up. Once the butter melts or the cheese goes on, it gets tough to eyeball.

So, how many calories does corn have? In plain form, not that many. In dressed-up form, it can jump from a modest side to one of the heaviest parts of the plate. The kernels stay the same. The extras call the shots.