A medium apple has about 95 calories. That’s based on a typical apple roughly 3 inches in diameter, weighing around 182 grams (about 6.4 ounces). Smaller apples come in closer to 75 calories, while a large apple can reach 115 or more depending on its size.
What’s Inside Those 95 Calories
Nearly all the calories in an apple come from carbohydrates. A medium apple contains about 25 grams of carbs, 19 grams of naturally occurring sugar, and 3 grams of fiber. There’s essentially no fat and only about 1 gram of protein. The sugar in apples is primarily fructose, which your body processes differently than the added sugars in packaged foods.
Apples have a glycemic index of 39, which is considered low. The glycemic load per serving is just 6. In practical terms, this means eating an apple won’t cause a sharp spike in your blood sugar the way white bread or candy would. The fiber in the fruit slows down how quickly sugar enters your bloodstream.
Do Different Varieties Have Different Calories?
The calorie difference between apple varieties is smaller than most people expect. Sweeter varieties like Fuji and Gala tend to sit slightly higher because they contain more sugar, while tart varieties like Granny Smith tend to be slightly lower. But the range is narrow, roughly 80 to 100 calories for a medium-sized fruit. The bigger factor is simply the size of the apple you’re eating. A large Honeycrisp from a farmers’ market can easily weigh twice as much as a small Gala from a grocery store, doubling the calorie count regardless of variety.
Why the Skin Matters
If you peel your apples, you lose a surprising amount of nutrition without saving meaningful calories. An unpeeled apple contains up to 332% more vitamin K, 142% more vitamin A, and 115% more vitamin C compared to a peeled one. You also lose a significant portion of the fiber, which is concentrated in and just beneath the skin. Peeling saves you maybe 10 calories at most, so it’s not a worthwhile trade.
Why Apples Feel More Filling Than Their Calories Suggest
At 95 calories, an apple is surprisingly satisfying compared to other snacks in the same calorie range. A handful of chips or a few cookies can deliver the same calories while leaving you hungry 20 minutes later. Apples work differently because of pectin, a type of soluble fiber that forms a gel-like substance in your digestive tract. This slows gastric emptying, meaning food sits in your stomach longer, which sends sustained fullness signals to your brain.
Research on pectin shows it reduces blood sugar and insulin spikes after eating, increases satiety, and can even lower calorie intake at subsequent meals. One study found that a low-calorie beverage supplemented with pectin reduced how much participants ate at their next meal. A medium apple contains a meaningful dose of pectin naturally, which is part of why whole fruit tends to be more filling than fruit juice, where the fiber has been stripped out.
The water content helps too. Apples are about 86% water by weight, which adds volume to the food without adding calories. That combination of water, fiber, and pectin is why nutrition researchers often point to whole fruit as one of the most weight-friendly snack options available.
Apples vs. Apple Products
The calorie count changes significantly once you move away from a whole, raw apple. A cup of unsweetened applesauce has roughly 100 calories but much less fiber and almost none of the pectin structure that makes whole apples so filling. A cup of apple juice jumps to about 115 calories with virtually no fiber at all. Dried apple rings pack around 50 calories per ounce, and because they’re so much smaller and less hydrating, it’s easy to eat several ounces in one sitting.
If you’re tracking calories or trying to stay full between meals, the whole apple is consistently the best option. You get the lowest calorie density, the most fiber, and the strongest satiety effect for the same amount of fruit.