You can buy sweet Corn in various forms, including whole ears of corn, canned and fresh kernels, and cobettes that are part of corn’s ear.
If you’re looking for weights, servings, and nutritional information for any kind of corn, look no further because it’s all inside this article.
So let’s get straight into the data…
Information in this Article
There’s lots of information in this article, so if you’re looking for something specific, use the links below to skip to the section you need:
Sweet Corn Serving Sizes
Serving sizes of corn can vary depending on the type of corn, for example, a whole ear of various sizes or corn kernels that have been removed from the ear. Recommended serving sizes also vary depending on where you look.
As a general rule, a serving of corn is equal to:
- Half a cup of corn kernels.
- Around 75g / 2.6oz.
- A small full ear of corn.
- One or two corn cobettes (or mini corn – see below)
The edible amount of corn you get from these servings equals around 75g and contains 65 calories per serving (in kcal).
Sweet Corn Weight and Calorie Calculator
The calculator below will help you work out the calorie value for any serving size of sweet corn and help you convert weights from metric or imperial.
Calorie values are based on an average of 0.86kcal per gram of sweet corn (as per USDA data), which will work for yellow or white corn.
Please note this is for plain corn with no added fat or sugar, and calories may vary slightly if you’re using canned corn which contains added sugar (check the can for details).
How Much Does a Cup of Sweet Corn Weigh?
A US cup of sweet corn kernels weighs an average of 145 grams or 5.1 ounces, which is equal to the yield of a large ear of corn or around two servings.
If you prefer to measure in cups, then all the information you need is in the table below, including conversion weights and calories:
|US Cup Size||Sweet Corn Conversion Weight |
In Grams & Ounces
|Calories per weight|
|1 cup||145g / 5.1oz||125kcal|
|1/2 cup||73g / 2.6oz||63kcal|
|3/4 cup||109g / 3.8oz||94kcal|
|2/3 cup||97g / 3.4oz||83kcal|
|1/4 cup||36g / 1.3oz||31kcal|
|1/3 cup||48g / 1.7oz||41kcal|
How Much Corn Do You Get From an Ear of Sweet Corn?
An ear of sweet corn is the part of the maize plant containing the corn kernels, which are protected beneath soft green leaves that reveal the corn beneath once removed.
Because they’re a natural product, the weight of an ear of corn will vary. To keep things simple, I’ve categorized the weights into average sizes (small, medium, and large) using official data from the USDA.
The figures in the table below are based on the edible yield and don’t include the core or outer leaves:
|Ear of Corn Size||Average Length (In inches)||Average Yield Weight (In Grams & Ounces)|
|Small||5 1/2″ to 6 1/2″||73g / 2.58oz|
|Medium||6 3/4″ to 7 1/2″||102g / 3.6oz|
|Large||7 3/4″ to 9″||143g / 5oz|
Corn Cobette Weights
Cobettes (or mini corn) are a smaller portion of a full cob that has been cut in half or into thirds. These mini corns can be found in most large grocery stores in either fresh or frozen sections.
A corn cobette from a medium corn cob that has been cut in half will yield an average of 51g/1.8oz of edible corn kernels, and a cobette that is a third of a medium ear of corn will yield around 37g /1.3oz.
The image below shows the typical size of a corn cobette (or mini corn):
Sweet corn Weight & Calorie Chart
The quick reference table below will help you find weight conversions and calorie values for various servings of sweet corn kernels.
This information is based on average weights and calorie values based on yellow or white corn without added sugar or fat.
|Sweet Corn Weight||Conversion Weight||Calories Per Serving|
Sweet Corn Nutritional Information & Overview
Below are the main nutrients and just some of the vitamins and minerals found naturally in sweet corn, along with a range of others that aren’t listed in the table.
Although sweet corn is a healthy choice, it’s a higher carb and sugar option than some other vegetables such as broccoli or kale.
|Nutrition Type||Amount Per 100g of Sweet Corn|
|Of which are sugars||6.26g|
If you’d like more information about how much of each vitamin and mineral you should be consuming per day, take a look at this article over at Medical News Today.
How Many Calories are in Sweet Corn With Butter?
One of the most popular ways to serve sweet corn, especially corn on the cob, is whole with melted butter. It’s a delicious way to eat one of our favorite vegetables, but how does the extra butter impact the overall calorie values?
A typical 14g serving of butter contains 100kcal per serving, and this is enough to get the butter coverage you need for an ear of whole corn on the cob.
The table below shows the total calories for each size of an ear of corn, based on the edible yield and 14g of butter:
|Corn on the Cob|
|Average Length (In inches)||Total Calories with 14g of Butter|
|Small||5 1/2″ to 6 1/2″ (73g / 2.58oz yield)||163kcal|
|Medium||6 3/4″ to 7 1/2″ (102g / 3.6oz yield)||188kcal|
|Large||7 3/4″ to 9″ (143g / 5oz yield)||223kcal|
More Sweet Corn Weights & Nutrition FAQs
An ear of average-sized medium corn on the cob will yield around 102g (3.6oz) of sweet corn kernels, which is equal to just under one and a half servings of corn. A serving of this size contains 88kcal.
Two level cups of sweet corn weigh a total of 290g (10.2oz) and will serve four people.
I hope the information in this article has helped you to find what you were looking for. You might also like the following related posts:
To ensure the nutritional information used in this article is accurate, I have used data from the USDA; the link below contains the source information in case you need it: