How Many Calories Are In Boiled Corn On The Cob? | Fresh Facts

Boiled corn is simple, fast, and flexible. The calorie math is just as friendly once you know how ear size and toppings add up. Below you’ll find the exact ranges by size, plus how butter, oil, cheese, or mayo change the final number. You’ll also get a quick nutrient snapshot and easy portion swaps for nights when you’re cooking for a crowd.

Calories In A Boiled Ear: Sizes, Toppings, And What Changes The Math

Start with size. A small ear lands around the mid-80s in calories, a medium ear sits near the high-90s, and a large ear reaches the low-110s. Those numbers come from cooked, drained kernels with no salt. Add-ons stack on top, and the teaspoon vs. tablespoon choice matters more than most people expect.

Calories By Ear Size And Common Add-Ons

Item	Serving	Calories
Small ear, plain (boiled)	~89 g kernels	~85
Medium ear, plain (boiled)	~103 g kernels	~98
Large ear, plain (boiled)	~118 g kernels	~113
Butter	1 tsp (5 g)	~34
Butter	1 tbsp (14 g)	~102
Olive oil	1 tbsp (14 g)	~119
Mayonnaise	1 tbsp (14 g)	~94
Grated Parmesan	1 tbsp (5 g)	~22
Salt	Pinch	0

Those plain-ear numbers align with USDA-based data for cooked yellow sweet corn. One cup of kernels (about 149 g) comes in near the mid-140s, while a small ear sits lower because it weighs less. The jump from a teaspoon to a tablespoon of butter is large, so measure with intention.

What Counts As One Serving?

For menu planning, one large ear matches roughly 1 cup of kernels. That swap makes it easier to plan side dishes for four or six. If you work from a daily plan, set your daily calorie needs first, then fit your sides into that budget. A plain medium ear is roughly the same energy as a small banana, which is handy when you’re balancing plates.

Calorie Count For Boiled Corn On The Cob (With And Without Butter)

Here’s a fast way to read your plate. Start with the ear size. Add the topping you actually use. If you’re splitting an ear between kids or laying kernels into a salad, treat half an ear as half the calories. Simple, steady, and flexible.

Plain Kernels Vs. Buttered

Plain, a medium ear sits near ~98 calories. One teaspoon of butter adds ~34. A full tablespoon adds ~102. If you like a glossy finish without a heavy bump, brush a teaspoon across a hot ear and let the heat melt it thinly from end to end.

Olive Oil, Mayo, And Cheese

A tablespoon of olive oil adds ~119 calories, mayo adds ~94, and a tablespoon of grated Parmesan adds ~22. Oil brings a clean flavor and slick texture; mayo brings tang; Parmesan adds a salty finish for a small energy cost. Try a half-tablespoon of oil with lemon juice to balance richness.

Portion Swaps And Smart Serving Tips

Cooking for a mixed table? Shave kernels off the cob for bowls and let everyone top their portion at the table. You’ll get better control over add-ons and waste less. For a creamy finish with less energy, stir a spoon of Greek yogurt into warm kernels and season with paprika and chives.

Quick Conversions That Help

• One large ear ≈ 1 cup kernels; that’s a good side for one adult.
• Two small ears ≈ 1½ cups kernels; that can cover two light sides.
• A half-tablespoon of butter is a neat middle ground for a mellow, even coat.

Nutrients Beyond Calories

Boiled corn is mostly carbohydrate with a small amount of protein and a touch of fat. It brings fiber and potassium, plus B-vitamins that show up across grains and starchy veggies. The sodium number stays tiny unless you salt the cooking water or finish with salted butter.

For the numbers below, values reflect cooked, drained yellow sweet corn from USDA-based FoodData Central. For serving swaps, the vegetable group page at MyPlate shows that one large ear equals about a cup of kernels, which maps cleanly to standard meal planning.

Typical Nutrition Per Medium Ear

Nutrient	Amount	What It Means
Calories	~98 kcal	Plain, boiled kernels only
Carbohydrate	~21–22 g	Main energy source here
Fiber	~2–3 g	Helps fullness and digestion
Protein	~3 g	Small, steady contribution
Total fat	~1–1.5 g	Low unless you add toppings
Potassium	~190–200 mg	Supports fluid balance
Sodium	<5 mg	Jumps with salted water or butter
Folate (B9)	~20 mcg	Part of normal cell processes
Vitamin C	~5 mg	Small antioxidant bump

Boiling Method, Salt, And Texture

Bring a big pot of water to a rolling boil before the ears go in. That quick shock keeps kernels bright and tender. Three to five minutes is enough for fresh ears; older ears may need a minute or two more. Skip salting the water if you’re watching sodium; season at the table instead.

Butter Vs. Oil Vs. Dry Seasonings

Butter brings dairy sweetness and a soft finish. Oil holds spices and citrus well, and it spreads thinly with a brush. If you want pop without fat, go dry: chili powder, smoked paprika, cracked pepper, garlic powder, and a squeeze of lemon. Finish with flaky salt so a small pinch seems bigger on the tongue.

How To Weigh Or Estimate An Ear

No scale? Kernels from a medium ear fill about two-thirds of a standard measuring cup. A small ear fills a half cup to a heaping half. If you have a scale, scrape kernels off the cob and weigh them to get closer to the numbers in the first table.

When You’re Cooking For A Crowd

Plan on one ear per person when corn is the star side, and three ears for every two people when it shares the plate with potatoes, rice, or pasta. Hold cooked ears in warm water for a few minutes while the rest of dinner comes together, then pat dry before topping so flavors stick.

Ways To Trim Calories Without Losing Flavor

• Use a teaspoon of butter, not a tablespoon; let heat spread it thin.
• Swap half the butter for lemon juice to make the finish feel lighter.
• Dust with Parmesan instead of slathering mayo to keep flavor high and energy modest.
• Blend chili, lime, and a touch of honey into a quick glaze and brush it on sparingly.

Boiled Corn Vs. Other Cooking Methods

Grilling and roasting develop browning and can feel richer even with the same add-ons, which sometimes helps you use less butter. The base calorie count stays similar because the kernel weight hasn’t changed. If you’re tracking closely, weigh the kernels after cooking; moisture loss can shift the numbers slightly by weight, but the ear-based count holds for most home plates.

Storage, Leftovers, and Meal Prep

Chill leftover ears within two hours. The next day, slice kernels into salads, toss warm kernels into a skillet with diced peppers, or stir them into soups for a sweet bite. The energy math is easy to keep: weigh the kernels, or use the cup swap to match the numbers in your plan.

Bottom Line And A Handy Rule

Remember this line: plain medium ear ~98 calories. Size sets the base; toppings do the heavy lifting. Build flavor with spices, lemon, and a measured dab of butter or oil, and you’ll get the taste you want with numbers that fit your day. Want a deeper dive on how to organize your intake? Try our calorie deficit guide for a step-by-step setup.