How Many Calories Is Six Oz of Apple? Full Nutrition Breakdown

To put it plainly, how many calories in 6 oz of apple works out to about 88 calories for raw apple with skin, falling inside a tight 85–95 range that tracks back to the USDA’s 52-calories-per-100-gram figure. Scaling that 52-cal baseline to 170 grams (the edible weight of a 6 oz portion) lands at 87.5 calories, which rounds up to 88. Gala, Fuji, Honeycrisp, Granny Smith, and Red Delicious all stay within roughly 5% of each other, so the variety rarely shifts your log by more than 3–4 calories.

This guide breaks down the full nutrition profile of a 6 oz apple, from its exact calorie count and macronutrients to the vitamins, antioxidants, and skin-versus-peeled differences that matter when you’re logging a mid-morning snack.

The Direct Calorie Answer for 6 Ounces of Apple

Raw apple with skin clocks in at about 88 calories per 6 oz portion, with a realistic range of 85 to 95 depending on which variety you pick. Gala, Fuji, Honeycrisp, and Granny Smith all fall within roughly 5% of each other, so the difference between a sweet Fuji and a tart Granny Smith is small enough to ignore in a food log. The variety might shift your number by 3 or 4 calories, not the 20 or 30 that some popular databases imply.

The per-ounce baseline of 14 to 16 calories scales linearly with portion size, which means doubling to 12 oz gives you about 175 calories and halving to 3 oz drops you to roughly 44. USDA FoodData Central anchors the entire system at 52 calories per 100 grams, a figure so widely cited that major tracking platforms build their apple entries around it. That same value backs the entries in MyFitnessPal, Cronometer, and Lose It, which is why the 88-calorie figure holds across almost any log you open.

That 85-to-95 range is the practical window. A Fuji skewed toward the high end of sugar concentration might push toward 95, while a smaller or less ripe Granny Smith could dip to 83. The mid-point of 88 is a safe single number to log if you don’t want to weigh or research each individual fruit.

What 6 Ounces of Apple Actually Looks Like in Grams and Cups

Six ounces converts to roughly 170 grams of edible apple flesh, a portion just slightly smaller than a standard medium apple (about 6.4 oz or 182 g). When you don’t have a kitchen scale, the visual reference is straightforward: 6 oz of apple is close in size to a tennis ball or a navel orange, giving you a quick eyeball tool for estimating portions on the go.

Chopped or sliced, 6 oz fills about 1 to 1.25 US cups. The exact volume depends on how tightly you pack the pieces, but for a roughly chopped apple you’re looking at just over a cup of usable flesh. This matters because most recipes and some tracking apps express apple quantities in cups rather than ounces, and a quick mental conversion prevents under- or over-logging.

One important detail: the 170 grams refers to the edible portion after the core is removed. A whole, intact apple weighs slightly more before coring because the seeds, stem, and core add a small amount of mass. For tracking purposes, the edible weight is the number that matters, since the core contributes negligible calories.

That edible weight translates into a straightforward set of macros worth knowing for accurate tracking.

Full Macronutrient Breakdown of a 6 Oz Apple

Carbohydrates, Sugar, and Fiber

Six ounces of raw apple contains roughly 22 to 24 grams of total carbohydrates, with naturally occurring sugars landing near 16 to 17 grams. Dietary fiber sits close to 4 grams, a meaningful amount that contributes to satiety and slows the absorption of the fruit’s natural sugars. For low-carb trackers, subtracting fiber from total carbs gives you net carbs of about 18 to 20 grams, a number that matters for anyone monitoring glycemic response or following a carb-restricted plan.

The sugar in apples is almost entirely fructose, glucose, and sucrose, the same simple sugars found in most whole fruits. Unlike added sugars in processed foods, the sugars in a whole apple arrive bundled with water (about 86% of the fruit’s weight) and fiber, which changes how your body processes them. The glycemic load of a 6 oz apple is moderate, roughly 6 to 8, meaning it produces a gentler blood-sugar curve than the same calories from juice or dried fruit.

Protein and Fat

Protein in a 6 oz apple is essentially trace, around 0.4 grams. Fat is even lower, coming in at under 0.3 grams. This macronutrient profile is typical of whole fruits, which are carbohydrate- and water-dominant with negligible fat and protein content. The absence of fat is actually a feature for calorie density: apples deliver volume and a satisfying crunch without the energy load that comes with fat-rich snacks.

That water content, about 146 grams in a 6 oz portion, is one reason apples fill you up. The fruit delivers roughly 86% of its weight as water, giving you a satisfying handful of food for a modest calorie cost. This is the core of apple’s low calorie density advantage: you eat a meaningful volume and walk away feeling like you ate something.

Micronutrients and Antioxidants Packed Into 6 Ounces

Six ounces of raw apple with skin delivers about 8 to 10 mg of vitamin C, which works out to roughly 10% of the daily value. Vitamin C supports immune function and acts as an antioxidant, and apples contribute a small but consistent amount to your daily intake. Skin-on apples push that number slightly higher because the peel holds additional vitamin C along with the polyphenol layer beneath it.

Potassium lands near 170 to 195 mg per 6 oz portion, a useful contribution to the 2,600 to 3,400 mg most adults need daily. Potassium supports heart rhythm, muscle contraction, and blood pressure regulation. The amounts here are modest, but when combined with other potassium sources throughout the day, a daily apple adds up to meaningful intake.

Polyphenols and Skin-Based Antioxidants

The apple’s skin is where most of the polyphenols live, including quercetin, phloridzin, and catechin. These compounds contribute to the fruit’s antioxidant capacity and are the reason nutrition guidance consistently recommends eating apples unpeeled. The flesh contains some antioxidants as well, but the skin delivers a measurably higher concentration per gram, which lines up with guidance from nutrition researchers at the Harvard T.H. Chan School of Public Health, who highlight fiber and phytochemicals as key apple benefits.

Beyond the headline nutrients, a 6 oz apple with skin provides small amounts of vitamin K (about 3 to 4 mcg), folate, and copper. These aren’t quantities that move the dial on your daily needs, but they round out a micronutrient profile that punches above its weight for a food with so few calories.

Skin-On Versus Peeled: Does It Change the Numbers

Peeling an apple removes a thin layer of fiber and a portion of the polyphenols, but the calorie impact is surprisingly small. A 6 oz peeled apple lands at roughly 82 to 90 calories versus 85 to 95 with skin, a difference of about 3 to 5 calories, well within the rounding tolerance of most tracking apps. The fiber drop, however, is more noticeable, falling from about 4 grams with skin to roughly 2.5 grams peeled.

That fiber reduction is the real consequence of peeling. For someone tracking fullness, digestive health, or blood-sugar response, a peeled apple delivers meaningfully less satiety per calorie. The polyphenols lost from the skin, quercetin and phloridzin among them, contribute to the antioxidant profile that nutrition researchers cite when discussing apple’s potential health benefits.

For most calorie-tracking goals, logging the apple as with-skin is accurate within rounding tolerance. Unless you’re specifically tracking fiber or antioxidant intake, the skin-on entry gives you a number that’s close enough. If you peel out of preference, subtract 2 to 3 calories and 1.5 grams of fiber for a more accurate log.

Knowing how peeling shifts those numbers, apples become easier to compare against the snacks you might reach for instead.

“You can eliminate most guesswork by weighing the apple after coring but before peeling, then logging it as “raw apple with skin” for the cleanest match to USDA data.

How 6 Ounces of Apple Stacks Up Against Other Common Snacks

A 6 oz apple carries fewer calories than most grab-and-go snacks you’d find in a break room or vending machine. A medium banana runs about 105 calories, a cup of low-fat plain yogurt lands near 150, and a standard granola bar typically falls between 120 and 200 calories. Against that field, 88 calories for a portion that fills your hand and delivers fiber and water looks competitive.

Berries beat apples on calorie density. Six ounces of strawberries delivers only about 50 calories, roughly half what an apple of the same weight provides, and blueberries sit around 80 to 90 calories per 6 oz. Grapes run slightly higher than apples at the same weight, about 100 calories, because they pack more concentrated sugar and less water. In the fruit category, apples occupy a mid-density spot, less caloric than bananas or grapes but more than berries.

Within a 1,500 to 2,000 calorie daily framework, one 6 oz apple represents roughly 4 to 6% of total intake. That’s a meaningful chunk for a snack, and the fiber and water content extend its satiety value beyond what the calorie number alone suggests.

Its satiety and calorie load are exactly why it slots so neatly into structured eating plans.

Fitting 6 Ounces of Apple Into Popular Diet Frameworks

On Weight Watchers, a whole 6 oz apple with skin typically scores 0 points under the current PersonalPoints system. The zero-point designation reflects the fruit’s low calorie density, high fiber, and minimal saturated fat. Some members still track apples for awareness, but the points cost is effectively nothing for most plans.

Strict keto and very-low-carb diets treat 6 oz of apple as too carb-heavy at roughly 22 grams of total carbs and 19 grams of net carbs. Most keto frameworks cap daily net carbs at 20 to 50 grams, and a single apple would consume most or all of that budget. Berries, with 8 to 12 grams of net carbs per 6 oz, are the standard substitute in keto-friendly meal plans.

Diabetic and Intermittent Fasting Considerations

Diabetic carb counters can treat 6 oz of apple as one medium fruit exchange, roughly 15 grams of available carbs when accounting for fiber, a standard reference for insulin-dosing math. Pairing the apple with a protein or fat source, like nut butter or cheese, further blunts the post-meal glucose response. That combination matters because the American Diabetes Association lists a small-to-medium apple (about 6 oz) as one carbohydrate serving, and the pairing step is how people keep the curve flat.

For intermittent-fasting eating windows, apples’ high water and fiber content extends satiety between meals. A 6 oz apple takes time to eat, delivers volume, and slows gastric emptying enough to bridge a 4 to 6 hour gap between meals without a blood-sugar crash. That makes it a practical choice for breaking a fast or carrying through the final hours of a feeding window.

• ▸Weight Watchers: 0 PersonalPoints under the current system, log only for personal awareness.
• ▸Keto under 20g net carbs: Too high in carbs, skip in favor of berries.
• ▸Diabetic carb counting: 1 fruit exchange, roughly 15g available carbs.
• ▸Intermittent fasting: High water and fiber support fullness across eating windows.
• ▸Mediterranean diet: Apple fits naturally as a daily fruit serving.

Why Calorie Numbers Vary Across Sources and How to Log With Confidence

Calorie differences between sources come down to three variables: apple variety, skin status, and whether the database lists raw, cooked, or dried weight. A cooked or dried apple entry can inflate calories dramatically because water has been removed and sugars are concentrated, sometimes doubling or tripling the per-gram energy density. Sticking to “raw, with skin” entries keeps you anchored to the consistent 52-calories-per-100-gram USDA baseline.

USDA FoodData Central is the cleanest reference. Major apps like MyFitnessPal, Cronometer, and Lose It mirror its values within a calorie or two, though you may occasionally see a database entry that lists a specific branded apple product or a cooked preparation. When in doubt, check the entry against the USDA raw-with-skin number and adjust your log accordingly.

“For the most accurate log, weigh the apple after coring, log it as “raw with skin,” and round to the nearest 5 calories. That small habit removes the inconsistency that makes ounce-based fruit logging the most common source of tracking error.

A $10 kitchen scale pays for itself in tracking accuracy within a week. Apples vary enough in size that “one medium apple” can mean anywhere from 5.5 to 7.5 ounces, a 20% swing that translates to a 15-to-20 calorie difference at the logging step. Weighing once, then using the visual reference of a tennis ball or navel orange, gives you a reliable shortcut for the rest of the day.

Bottom Line

Six ounces of raw apple with skin delivers about 88 calories, anchored to the USDA’s 52-calories-per-100-gram figure and stable across Gala, Fuji, Honeycrisp, and Granny Smith varieties. The combination of roughly 4 grams of fiber, 86% water content, and negligible fat means you get a filling, nutrient-dense snack for under 100 calories, a ratio that’s hard to beat in the fruit aisle.

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