A medium-sized apple has about 95 calories. That makes it one of the lower-calorie whole fruits you can grab as a snack, and the number shifts depending on the size of the apple and whether you eat it fresh, dried, or processed into juice or sauce.
Calories by Apple Size
Most calorie counts you’ll see are based on a medium apple, roughly the size of a tennis ball. Per 100 grams of raw apple with the skin on, the count is about 52 calories. Since a medium apple weighs around 182 grams, you land near that 95-calorie mark. A small apple (about 150 grams) comes in closer to 78 calories, while a large one (around 223 grams) pushes toward 116 calories. The variety of apple, whether it’s a tart Granny Smith or a sweet Fuji, makes only a minor difference. Size matters far more than type.
What’s Inside Those Calories
Nearly all the energy in an apple comes from carbohydrates. A medium apple contains about 25 grams of carbs, 19 grams of which are naturally occurring sugars (a mix of fructose, glucose, and sucrose). It also delivers 3 grams of fiber, essentially zero fat, and about 1 gram of protein.
That fiber content is worth noting. Three grams puts an apple ahead of many common snack foods, and a good portion of it lives in the skin. Per 100 grams, a raw apple with the skin has 2.4 grams of fiber compared to just 1.1 grams in unsweetened applesauce, where much of the skin and pulp has been processed away. If you peel your apples before eating them, you’re losing a meaningful share of the fiber along with it.
Why Apples Don’t Spike Blood Sugar
Nineteen grams of sugar sounds like a lot, but apples have a glycemic index of only 39 out of 100, which is considered low. The glycemic load, a more practical measure that accounts for how much sugar actually hits your bloodstream in a real serving, is just 6. For comparison, anything under 10 is considered low. The fiber and water content of a whole apple slow down how quickly your body absorbs those sugars, so you get a steady source of energy rather than a sharp spike and crash.
Fresh vs. Dried vs. Juice
How you eat your apple changes the calorie picture dramatically. A single dried apple ring has about 16 calories, which sounds harmless until you realize how easy it is to eat a dozen of them in a few minutes. Drying removes water but concentrates the sugar and calories into a much smaller volume, so a cup of dried apple rings packs far more energy than a fresh apple of similar weight.
Unsweetened applesauce is actually slightly lower in calories per 100 grams than a raw apple (42 versus 52), because water is added during processing. But it also has less than half the fiber, which changes how filling it feels. Apple juice drops the fiber almost entirely and delivers its calories as liquid sugar your body processes quickly.
A study published in the journal Appetite tested this directly. Participants who ate whole apple segments before a meal reported significantly higher fullness and lower hunger than those who consumed applesauce or apple juice with the same number of calories. The whole fruit outperformed every processed form. Even applesauce beat juice for satiety, but nothing matched eating the apple itself.
Apples Compared to Other Fruits
At 52 calories per 100 grams, apples sit in the middle of the fruit spectrum. Strawberries and watermelon are lower (around 30 to 32 calories per 100 grams). Bananas are higher at roughly 89 calories per 100 grams, and grapes come in around 67. The practical difference between most common fruits is small enough that choosing whichever one you’ll actually eat consistently matters more than optimizing for a few calories.
Making Apple Calories Work for You
If you’re tracking calories or trying to manage your weight, the most useful thing to know about apples is that their calorie-to-fullness ratio is excellent. The combination of water, fiber, and the physical act of chewing a whole apple activates satiety signals that liquid calories and processed snacks simply don’t trigger. A 95-calorie apple can genuinely hold off hunger for an hour or two, which is more than you’d get from a 95-calorie handful of crackers or pretzels.
Eating the skin gets you the most fiber per calorie. Choosing a whole apple over juice or sauce keeps you fuller longer. And keeping the portion in perspective helps too: even a large apple at 116 calories is still a low-calorie snack by any reasonable standard.