How many calories are in a cupcake with frosting?

A regular bakery cupcake with frosting weighs 90 g and carries 323 calories. Per 100 g, that same white cake under white icing runs 359 calories. Roughly 44 of those calories are the frosting itself; the rest is cake. Sugar, not fat, is what fills the number out.

You'd need to walk about 65 minutes to burn the 323 calories in one regular cupcake (90 g).

A single cupcake in a paper liner topped with a tall swirl of white frosting

How long does it take to burn off 323 kcal of frosted cupcake?

One regular cupcake (90 g) is 323 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:

ActivityTime to burn 323 kcal
Walking, brisk1 hr 5 min
Cycling, moderate40 min
Swimming, moderate46 min
Jogging38 min
Weight training, moderate1 hr 12 min

Times are for a 155 lb adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (90 g); change it to what you actually ate. BodyPal works this out from your steps automatically.

On this page

Cupcake with frosting quick facts

The picture most people have in mind when they search this is the bakery-case cupcake: white cake, a thick swirl of white buttercream, paper liner. That is a specific record in USDA FoodData Central — FNDDS 2707891, "Cake or cupcake, white with white icing, bakery" — and it carries its own household portion of one regular cupcake at 90 g. Everything below is built on that row.

A homemade or boxed-mix cupcake is a different record, and so is a plain unfrosted one. Both get their own sections further down, because the gap between them is bigger than the gap between vanilla and chocolate.

NutrientPer 100 gPer 1 regular cupcake (90 g)% Daily Value
Calories359323
Total fat14.33 g12.9 g17%
Saturated fat2.82 g2.5 g13%
Carbohydrate54.95 g49.5 g18%
Dietary fiber0.4 g0.4 g1%
Total sugars41.26 g37.1 g
Protein2.4 g2.2 g4%
Sodium313 mg282 mg12%
Cholesterol43 mg39 mg13%
Potassium43 mg39 mg1%

% Daily Value is based on a 2,000-calorie diet.

Verified nutrition data

Numbers on this page come from USDA FoodData Central, the U.S. Department of Agriculture’s food composition database, and from manufacturer labels where a branded product is named. Last verified September 2026. How we verify our data →

Two label rows are missing on purpose. There is no added sugars figure here, because USDA does not publish added sugars for this FNDDS record — total sugars carry the story instead, and no %DV can honestly be printed against the 50 g added-sugars Daily Value. Trans fat is absent for the same reason. Total sugars have no Daily Value at all, which is why that cell is a dash on every US label you have ever read.

US servings, from one mini to a bakery slice

ServingWeightCalories
1 oz28.4 g102 kcal
One mini or bite-size cupcake30 g108 kcal
Half a regular cupcake45 g162 kcal
One regular cupcake90 g323 kcal
One regular slice of 1-layer cake115 g413 kcal
Per 100 g100 g359 kcal

Three of these are official USDA household measures: the 90 g regular cupcake, the 30 g mini, and the 115 g slice of single-layer cake all come straight from the FNDDS portion list for this food. The 1 oz line and the half-cupcake line are our own arithmetic from the USDA 100 g figure, not USDA servings — useful if you ate part of one, or if you are weighing on a kitchen scale.

The half-cupcake row matters more than it looks. A frosted cupcake is one of the few desserts people genuinely do split, and 162 calories lands in the same territory as a granola bar. The whole one does not.

One caveat on size. The 90 g "regular cupcake" is the USDA standard, and it fits a supermarket bakery six-pack well. Specialty cupcake shops build much taller domes of frosting, and those routinely cross 110–130 g. If yours is visibly bigger than a tennis ball, weigh it and scale from the 359 per 100 g line rather than assuming 323.

Chocolate, vanilla, boxed mix and bare

Cut cupcake with white frosting and yellow crumb, whole one behind, half on a small plate; 1 cupcake (90 g) 323 cal, half (45 g) 162 cal
VersionPer 100 gTypical cupcakeCalories
White cake, white frosting, bakery359 kcal90 g323 kcal
Chocolate cake, white frosting, bakery355 kcal90 g320 kcal
White cake, chocolate frosting, bakery349 kcal90 g314 kcal
Chocolate cake, chocolate frosting, bakery345 kcal90 g, our arithmetic311 kcal
White cake, white frosting, from a boxed mix353 kcal75 g265 kcal
White cake, no frosting310 kcal90 g, our arithmetic279 kcal
Mini cupcake with frosting359 kcal30 g108 kcal

Here is the first thing worth taking away: flavor barely moves the calories. Across the four frosted bakery versions the spread is 345 to 359 per 100 g — fourteen calories, less than the error on your kitchen scale. Chocolate is not the "bad" one and vanilla is not the "light" one.

The frosting is a real number, though. Strip it off and the same white cake drops to 310 calories per 100 g, which on a 90 g cupcake means 279 instead of 323. That is 44 calories of pure swirl. Not nothing, but far less than most people assume, because frosting is sugar and sugar is only 4 calories per gram.

The boxed-mix line is the sneaky one, and it is not about the recipe. At 353 per 100 g it is essentially identical to the bakery cake. It comes out to 265 calories only because the standard portion is 75 g instead of 90 g. Same cupcake, smaller cupcake, 58 fewer calories.

Packaged snack cakes play the same trick from the other direction. A Hostess cupcake is 170 calories because the cake weighs 45 g; McKee's creme-filled version is 220 for 53 g, and a Target-brand chocolate cupcake is 250 for 58 g. Five of those six store rows run denser per 100 g than the bakery record — 378 to 431 against 359 — so they are richer per bite and simply smaller.

Sugar and sodium: the two rows to watch

Fat is the row people brace for, and it is unremarkable: 12.9 g, 17% of the Daily Value, with 2.5 g saturated. Swap to chocolate frosting and saturated fat rises to 3.6 g on a 90 g cupcake, and to 3.7 g if the cake is chocolate too — cocoa frostings simply carry more of it. Even then you are under a fifth of the day's allowance. The FDA's Daily Value reference sets saturated fat at 20 g.

Sugar is the real headline. One cupcake carries 37.1 g of total sugars, and while USDA does not break out how much of that is added rather than naturally present, a white cake under buttercream is overwhelmingly the added kind. The Dietary Guidelines for Americans ask adults to keep added sugars under 10% of daily calories — 50 g on a 2,000-calorie day. One cupcake sits close to that ceiling on its own, which is why MyPlate files cake and frosting under occasional treats rather than daily food.

Then there is the row nobody checks on a dessert: sodium, at 282 mg, or 12% of the Daily Value. That is about an eighth of a teaspoon of table salt hiding in something sweet, and it comes from baking soda, baking powder and salted butter. If you are watching sodium, the frosted cupcake quietly costs you as much as a slice of deli ham.

Protein is 2.2 g, or 4% DV. This is a food that gives you calories and very little else — 0.4 g of fiber and 39 mg of potassium confirm it. Eat it because you want it, not because you expect it to hold you over.

How does a frosted cupcake compare?

CupcakePer 100 gUS servingCalories
White cake, white frosting, bakery359 kcalone cupcake, 90 g323 kcal
Chocolate cake, white frosting, bakery355 kcalone cupcake, 90 g320 kcal
White cake, chocolate frosting, bakery349 kcalone cupcake, 90 g314 kcal
White cake, white frosting, from mix353 kcalone cupcake, 75 g265 kcal

Our take: stop choosing by flavor and start choosing by size. Three of these four are within nine calories of each other because they are all 90 g; the fourth is the lightest on the list purely because it is 15 g smaller. If you are counting, the levers that actually work are a mini at 108 calories, half a cupcake at 162, or scraping off part of the swirl for up to 44. Picking chocolate over vanilla buys you three calories, which is noise.

Most popular cupcake with frosting brands in the United States

Ranked by how widely each product appears among foods sold in the United States, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each Nutrition Facts label, checked against USDA FoodData Central.

ProductCalories (per 100 g)
Hostess Cupcakes378 cal
McKee Foods Creme Filled Cupcakes415 cal
Tastykake Chocolate Cupcakes351 cal
Target Chocolate Cupcakes431 cal
Maplehurst Everyday Favorites Cupcakes379 cal
Rubicon Bakers Vanilla Cupcakes391 cal

Brand popularity: BodyPal food database. Nutrition: manufacturer labels / USDA FoodData Central.

Cupcake FAQs

How many calories are in a cupcake with frosting?

323 calories in one regular bakery cupcake weighing 90 g, at 359 calories per 100 g. It brings 49.5 g of carbohydrate, 37.1 g of total sugars, 12.9 g of fat and just 2.2 g of protein. A larger cupcake-shop version at 120 g would be closer to 431, our own scaling from the USDA 100 g figure.

How many calories in a vanilla cupcake with vanilla frosting?

323 calories, because white cake with white icing is exactly the USDA record behind this page: 359 calories per 100 g and a 90 g standard cupcake. Vanilla is not lighter than chocolate here. The chocolate cake version with the same white frosting comes in at 320, a difference you can ignore.

How many calories in a chocolate cupcake with frosting?

320 calories for a 90 g chocolate cupcake with white frosting, and 311 if the frosting is chocolate too. Per 100 g those run 355 and 345, both slightly below the white-on-white version. The chocolate pairing does carry more saturated fat, 3.7 g against 2.5 g, and more fiber.

How many calories does the frosting alone add?

About 44 calories on a 90 g cupcake. The frosted white cake is 359 calories per 100 g; the same cake with no icing is 310, which works out to 323 against 279 on a whole cupcake. Frosting is mostly sugar at 4 calories per gram, so it adds less than its volume suggests.

How many calories in a mini cupcake?

108 calories for one miniature or bite-size frosted cupcake of 30 g, which is USDA's own small portion for this food. Three minis come to 324, essentially the same as one regular 90 g cupcake at 323. The advantage is stopping at one, not eating fewer calories per gram.

How much sugar is in a frosted cupcake?

37.1 g of total sugars in one 90 g cupcake, from 41.26 g per 100 g. USDA does not publish an added-sugars figure for this record, so no percentage against the 50 g Daily Value can be stated, but a white cake under buttercream is overwhelmingly added sugar rather than naturally occurring.

Is a cupcake worse than a slice of cake?

No, it is smaller: a regular slice of single-layer frosted cake weighs 115 g and delivers 413 calories, against 323 for the 90 g cupcake. Per 100 g they are identical at 359, since a cupcake is the same batter baked in a paper cup. The portion is doing all the work.

How many calories in a Hostess cupcake?

170 calories per cake, according to the label on the 45 g serving. That is lower than a 90 g bakery cupcake's 323 only because it is half the size — at 378 calories per 100 g the packaged snack cake is actually denser than the bakery version's 359. McKee's creme-filled version is 220.

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