How Many Calories Are In Boiled Corn? | Quick Facts

Calories In Boiled Corn: Per Ear, Cup, And 100 Grams

Boiled sweet corn is mostly water and starch with a little protein and fat. Numbers vary by ear size and how much kernel you cut from the cob. Using widely cited USDA data, cooked yellow sweet corn lands near 96 calories per 100 grams of kernels, about 135 calories per measured cup, and roughly 85–100 calories for a small to medium ear after boiling. Those ranges reflect natural size differences and how tightly the kernels pack into a cup.

If you’re tracking intake, weigh the kernels after cooking or use consistent measuring cups. Corn on the cob looks hefty, yet once the cob weight is excluded, the calorie total often surprises people on the low side compared with pasta or rice by volume. The starch is still there, so portions matter, but a simple boiled ear can fit neatly into most daily plans.

Quick Reference Table: Common Portions

The chart below shows approximate calories for popular boiled servings. Values refer to cooked, drained kernels without salt.

Portion	Approx. Weight	Calories
100 g kernels	100 g	~96 kcal
1 cup kernels	~149 g	~135 kcal
1 ear, small	~89 g kernels	~85 kcal
1 ear, medium	~103 g kernels	~95 kcal
1 ear, large	~118 g kernels	~110 kcal
½ cup kernels	~75 g	~65–70 kcal

Those estimates line up with the USDA-sourced profile for boiled yellow sweet corn and reflect cooked, drained kernels. When a recipe calls for “cup of corn,” this is typically the same cup weight you see here. To dial in fiber goals during the day, people often line up sides like corn with a target intake; setting your recommended fiber intake first makes those choices easier.

What Changes The Calorie Count?

Boiling itself won’t add calories. The biggest swing comes from add-ins. Butter, mayonnaise, crema, grated cheese, and sugary sauces can stack energy quickly. The second swing is portioning. A packed cup of cut kernels will hold more corn than a loose cup and can add another spoonful without you noticing.

Seasonings without calories still matter for taste. Lemon, lime, chili powder, smoked paprika, garlic, and herbs bring plenty of flavor. If sodium is on your radar, season after tasting so you use less by default. Plain kernels have a natural sweetness that usually needs only a light hand.

Boiled Corn Nutrition Beyond Calories

Per 100 grams cooked, boiled sweet corn typically supplies around 3 grams of protein, a little over 20 grams of carbohydrate, 2–3 grams of fiber, and about 1–2 grams of fat. It also offers small amounts of B-vitamins, potassium, magnesium, and carotenoids like lutein and zeaxanthin. Those compounds sit in the kernel’s pigment and give yellow corn its color.

On a label, calories come from macronutrients: carbohydrate and protein provide 4 kcal per gram, fat provides 9 kcal per gram. That’s the same arithmetic the FDA uses on Nutrition Facts, so your own kitchen math will match what you see at the store.

How To Measure Boiled Corn Accurately

First, decide whether you’re logging corn on the cob or cut kernels. For cobs, estimate ear size and use the small/medium/large rows from the table. For cut kernels, use a digital scale or a level cup. If you’re meal-prepping, weigh a larger batch once, note the total grams, and divide by portions. That avoids repeating the same task all week.

Frozen corn behaves the same way once cooked. Drain well, fluff the kernels, and measure while warm. Canned corn is already cooked; rinse to remove packing liquid and salt, then portion like frozen or boiled. Flavor add-ins come after you’ve plated the base serving.

Calories In Boiled Corn On The Cob: What To Expect

A typical small ear (about 89 g kernels after boiling) lands near 85 calories. A medium ear (about 103 g kernels) pushes near 95 calories, while a large ear (about 118 g kernels) reaches around 110 calories. Real ears vary, so treat these as guideposts. If you remove kernels from the cob, weigh them once and you’ll have your own house numbers.

Want a quick mental model at a cookout? Think “one ear ≈ one slice of sandwich bread” in energy terms. Toppings decide the rest.

Portion Swaps That Keep Flavor

Butter gives that classic shine, yet a teaspoon is plenty. Fresh herbs wake up sweetness without adding energy. Bright acid from lime or a dusting of cotija cheese delivers punch in smaller amounts, which is the whole aim when you want flavor to carry while keeping calories predictable.

Add-Ins And Toppings: Extra Calories At A Glance

Here’s a simple add-on chart for boiled kernels or cobs. Mix and match, and pick the serving size that suits your plate.

Topping Or Mix-In	Amount	Extra Calories
Butter	1 tsp (5 g)	~34 kcal
Mayonnaise/Crema	1 Tbsp (14 g)	~90 kcal
Grated Parmesan	1 Tbsp (5 g)	~21 kcal
Crumbled Cotija	1 Tbsp (8 g)	~31 kcal
Olive Oil	1 tsp (5 ml)	~40 kcal
Chili-Lime Seasoning	1 tsp	0–5 kcal

Boiled Corn In Balanced Meals

Corn is a starchy vegetable, so it sits closer to potatoes and peas than leafy greens. One cup of kernels can stand in for a grain on the plate. Pair it with lean protein and a non-starchy veg to keep energy steady while you still get that sweet pop from the kernels. On days when you serve tortillas or rice, shift corn down to a half cup and fill the rest of the plate with crisp salad or slaw.

If you like tracking with food groups, the USDA places corn in the starchy subgroup of vegetables, which helps with planning variety during the week. You can read more about vegetables as a whole in the MyPlate vegetable group. That page explains cup-equivalents and why rotating colors pays off over time.

Boiled Corn Versus Grilled Or Roasted

Grilling or roasting barely shifts calories on its own. Oil brushed on the cob, butter melted at the end, and creamy sauces do the shifting. For smoky flavor without the extra energy, grill the cob dry, then finish with lime juice, chopped cilantro, and a light sprinkle of cheese. If you prefer a café-style cup, measure the dressing first, toss, and taste before adding more.

Label Math You Can Trust

Food labels use the same calorie math you’d use at home: 4 kcal per gram from carbs, 4 from protein, 9 from fat. That framework is laid out on the FDA’s Nutrition Facts guidance and keeps products consistent across brands. It also explains why a spoon of butter moves totals far more than a spoon of herbs or spices.

When you see small differences in corn numbers across apps, it usually comes down to rounding and portion size. A packed cup versus a loose cup can differ by a tablespoon or two of kernels, which is enough to move totals by ten to twenty calories. Pick one method and repeat it for apples-to-apples tracking.

Simple Ways To Serve Boiled Corn

Weeknight Sides

Toss hot kernels with a teaspoon of butter, a squeeze of lemon, and chopped parsley. Season lightly. Add pan-seared chicken or fish, and you’ve got a plate that lands in a steady range for energy with bright flavor.

Lunch Bowls

Layer brown rice, beans, warm corn, shredded cabbage, and salsa. Finish with a measured drizzle of olive oil or a spoon of Greek yogurt. That keeps portions measured while still giving a creamy element.

Salads That Hold

Combine kernels with cherry tomatoes, cucumbers, red onion, and lime. Add feta or cotija in a small sprinkle. Chill for a make-ahead side that travels well.

FAQ-Free Closing Notes

Boiled corn fits easily into most eating styles. One medium ear sits near 100 calories. A level cup lands near 135. The dial that moves totals is toppings, not the boil. With that in hand, you can portion once, season smart, and enjoy the natural sweetness with the rest of your plate set to suit your day.

If you want a deeper primer on calories and planning, our calorie deficit guide walks through step-by-step math in plain language.