QUICK ANSWER
How many calories are in corn?
For fresh raw yellow-and-white kernels, the selected reference is 84.6 kcal per 100 g. Scale that value to the edible portion and keep other preparations separate.
84.6 kcal / 100 gNutrition values describe a reference food state, not every individual item. Variety, water content, preparation and portion weight can change the estimate.
THE NUMBERS
Corn nutrition facts per 100 g
The values below use the reference state shown at the top of this page. Keeping one gram basis makes it easier to compare foods before translating the values to the portion you actually ate.
- Calories
- 84.6 kcal
- Protein
- 2.79 g
- Carbohydrate
- 14.7 g
- Fat
- 1.63 g
- Fibre
- 2.43 g
- Potassium
- 237 mg
- Magnesium
- 25.8 mg
- Niacin
- 1.59 mg
Source: USDA FoodData Central Foundation record 2710826. Values may be rounded for readability.
SERVING SIZE
Calories by portion and serving weight
Words such as “small,” “medium,” “half” and “one piece” are convenient but imprecise. Grams make the estimate reproducible, particularly when natural foods vary in size.
MACROS
Carbohydrate, protein and fat explained
Protein
2.79 g per 100 g. From Corn, sweet, yellow and white kernels, fresh, raw.
Carbohydrate
14.7 g per 100 g. From Corn, sweet, yellow and white kernels, fresh, raw.
Fat
1.63 g per 100 g. From Corn, sweet, yellow and white kernels, fresh, raw.
MORE THAN CALORIES
Fibre, vitamins and minerals
One food does not need to provide every nutrient. These are the characteristics most useful for understanding where corn fits in a varied eating pattern.
Potassium
237 mg per 100 g in the selected USDA record.
Magnesium
25.8 mg per 100 g in the selected USDA record.
Niacin
1.59 mg per 100 g in the selected USDA record.
Vitamin B-6
0.15 mg per 100 g in the selected USDA record.
FOOD STATE MATTERS
How preparation changes the nutrition estimate
A reliable calorie entry should describe the food you actually ate—not merely a food with a similar name.
Fresh raw kernels
Selected yellow-and-white kernel reference.
Boiled corn
White and yellow, with- and without-salt records are mapped.
Canned corn
Match whole-kernel, cream-style, brine, vacuum-pack and salt state.
Frozen or dried corn
Use the matching cob, kernel, cooked, unprepared or dried record.
PRACTICAL CONTEXT
How corn can fit different goals
There is no universal “good” or “bad” food. Portion, frequency, the rest of the meal, preferences and individual health needs all matter.
Portion math
84.6 kcal per 100 g becomes 42.3 kcal for the 50 g example.
Fibre check
The selected record lists 2.43 g fibre per 100 g.
Protein check
The selected record lists 2.79 g protein per 100 g.
Best logging move
Confirm fresh, boiled, canned or frozen first; then scale calories from the matching record.
QUALITY & SAFETY
How to choose, store and prepare it
Store
Keep fresh corn chilled and protected from drying out.
After opening or cutting
Cover cut cobs or removed kernels in a clean container.
Prepare
After opening canned corn, move leftovers to a covered food-safe container and chill.
Check before eating
Discard corn with mould, sour off-odour or a damaged leaking can.
PHOTO LOGGING
How to log corn more accurately
A food photo can suggest the ingredient, but it cannot always reveal exact weight, hidden oil or preparation details. These checks turn an image guess into a better estimate.
- 01
Match the exact reference state: Corn, sweet, yellow and white kernels, fresh, raw.
- 02
Use edible grams. Calories are scaled from the selected per-100-g record; named portions use weights stored in that same local USDA record.
- 03
Log oil, sauce, sweetener, salt and recipe ingredients separately.
- 04
Use a separate record when preparation changes the food state.
COMMON QUESTIONS
Corn calorie and nutrition questions
How many calories are in 100 g of corn?
84.6 kcal in the selected Corn, sweet, yellow and white kernels, fresh, raw record.
How much fibre is in corn?
2.43 g per 100 g in the selected record.
Which corn entry does this page use?
Corn, sweet, yellow and white kernels, fresh, raw. The preparation and edible state are part of the answer.
Can canned corn use the fresh-corn numbers?
Not automatically. USDA lists several canned packs and salt states separately.
How are the portion calories calculated?
Each portion is scaled from 84.6 kcal per 100 g. Named portion weights come from the selected source record.
KEEP EXPLORING
Related food guides
SOURCES & METHOD
Where these numbers come from
Corn, sweet, yellow and white kernels, fresh, raw, per 100 g edible portion. Numeric nutrition and portion claims use the selected local USDA record. Preparation notes cover the common USDA forms of this food; log added ingredients separately.
Open USDA FoodData Central Foundation record 2710826 ↗Page reviewed 26 August 2026. We show the food state, gram basis and source record so readers can check the estimate instead of treating one number as universally exact.