A medium Granny Smith (≈182 g) contains about 95 calories; size, peel, and prep can nudge the total.
Article Card
Small Size
Medium Size
Large Size
Raw With Peel
- Standard count: ~52 kcal per 100 g
- More fiber from the skin
- Crisp, tart bite
Baseline
Peeled
- Similar calories per 100 g
- Slightly less fiber
- Softer texture
Texture First
Baked, Plain
- Same fruit, new water loss
- Per serving calories shift
- Skip added sugar for parity
Warm Option
Let’s pin down the number with real-world sizes. A crisp tart Granny Smith runs near 52 calories per 100 grams. That figure scales with weight, so once you know the size, the math stays simple. The common “medium” label sits around 182 grams, which lands close to 95 calories. Smaller pieces drop under 80, while large fruit can push past 110. Peel kept on? Fiber climbs, calories per 100 grams remain about the same.
Calories In A Mid-Size Granny Smith (With Peel): The Range
The tart green classic varies by orchard, season, and water content. That’s why calorie counts appear as a band. A mid-size fruit listed at 182 grams delivers about 95 calories, using the 52-per-100-gram baseline. A compact apple—say 150 grams—lands near 78 calories. Upsize to about 223 grams and you’re in the 115–120 window. Same fruit, same energy density; only weight shifts.
Why Green Versus Red Feels The Same On Calories
Color doesn’t move the needle much. Honeycrisp, Gala, Red Delicious, and Granny Smith cluster near the same energy per 100 grams. Texture, tartness, and sugar profile differ a touch, yet the calorie math barely budges. Pick the flavor you enjoy and then watch portions if the goal is careful tracking.
Quick Size-To-Calories Table (Early Reference)
This table uses the 52 kcal per 100 g baseline and common produce weights. Values are rounded to keep the math handy.
| Apple Size | Approximate Weight (g) | Calories (kcal) |
|---|---|---|
| Small, With Peel | 150 | ~78 |
| Medium, With Peel | 182 | ~95 |
| Large, With Peel | 223 | ~116 |
| 1 Cup Slices | ~109 | ~57 |
| Per 100 Grams | 100 | ~52 |
Once portions line up, everything clicks—snacks fit better once you set your daily calorie needs. With fruit, the peel doesn’t add energy; it adds fiber, which helps fullness. That’s why many trackers list raw with skin as the default entry.
How We Get To ~95 Calories
The math is straight-up: multiply weight (grams) by ~0.52. That’s your estimate for a raw tart green apple with peel. Most nutrition databases rely on lab data that settle near this figure across varieties. If your fruit looks hefty or tiny, weigh it once to calibrate your eye. After that, a quick glance gets you close enough for daily logging.
Peel On Versus Peel Off
Energy stays similar either way. Peel brings fiber and polyphenols; removing it trims those, not calories. If texture is the goal, peeled slices are fine, just count them by weight. Fiber targets still matter for gut health, so try to keep the skin when you can.
How Cut Style And Prep Shift The Count
Water loss raises calories per 100 g even when you add nothing. Baking or dehydrating drives off water, concentrating energy. The apple hasn’t “gained” calories; it’s simply denser per bite. Add sugar, butter, or crust and the picture changes fast, as those extras carry their own energy.
Label Language, Serving Sizes, And “Medium”
Grocery labels and databases use standard serving references so numbers compare across foods. In the U.S., labeling rules talk about reference amounts customarily consumed. You’ll see these rules in federal law governing Nutrition Facts. That standardization helps shoppers scan a label and make quick swaps that still match portion logic, even when produce sizes vary. See the FDA’s page on reference amounts for context on how “customary” portions are set.
How A Kitchen Scale Makes This Easy
A 10-second weigh-in gives you precision with zero guesswork. Place the fruit on the scale, note grams, and multiply by 0.52 for calories. If you’re tracking macros, save the entry as a custom food so next time is one tap. No scale? Use the size table above and keep your estimate consistent.
Nutrition Snapshot Beyond Energy
The tart green favorite brings more than a tidy calorie count. Each medium piece usually carries 3–4 grams of fiber, mostly in the skin, plus vitamin C and potassium. That’s why many dietitians keep apples in steady rotation for snacks, sides, or a quick pre-walk bite. If you pair slices with a protein or fat source—yogurt, peanut butter, cheddar—the combo sticks longer.
What About Sugar?
Fruit sugar in apples comes packaged with water and fiber. That blend slows digestion compared with sweetened drinks. Tracking total carbohydrates still matters for some readers, but raw fruit can fit. Slices before training? Nice quick energy. Slices late at night? Go smaller and see how your sleep and appetite respond.
Fiber, Fullness, And Peel
Peel brings insoluble and soluble fiber, including pectin. That helps volume and texture in the gut, which many people feel as steadier hunger cues. If you’re building snacks around whole foods, a tart green apple with skin is an easy anchor.
Second Reference Table: Common Servings And Estimates
Use these ballpark figures to match everyday portions. Values assume raw fruit with peel unless noted.
| Serving/Prep | Typical Weight (g) | Calories (kcal) |
|---|---|---|
| Half Medium Apple | ~91 | ~47 |
| 1 Cup Slices (Packed Light) | ~109 | ~57 |
| Peeled, Medium Fruit | ~175 | ~91 |
| Baked, Plain (1 Medium) | ~160 | ~83 |
| Dehydrated Chips (28 g) | 28 | ~97 |
Picking, Storing, And Portioning For Your Goals
Picking At The Store
Choose firm fruit with bright green color and a crisp snap near the stem. Heavier pieces often signal juicier bites. If you’re portion-minded, aim for a consistent size so calories don’t swing day to day.
Storing At Home
Keep apples cold and dry. The crisper drawer guards texture and slows starch-to-sugar shifts. For prepped snacks, toss slices with a squeeze of lemon to keep color and stash in an airtight container.
Portioning That Fits Your Day
Need a tidy snack before a walk? Half a medium piece with a cheese stick works. Looking for a sweet finish after lunch? Go with one full fruit and skip dessert. If dinner skews carb-heavy, save the fruit for the next morning.
Smart Swaps And Pairings
Swap Dessert Without Feeling Shortchanged
Baked apples with cinnamon hit the warm-sweet note with a lower energy load than pie. Stir chopped fruit into oats or Greek yogurt for a thicker, creamy bowl that stays with you.
Pair With Protein Or Fat
Balance a crisp tart bite with nuts, seeds, or dairy. The mix slows digestion and smooths energy. Keep portions modest so the snack stays in the same calorie range as one fruit alone.
Credible Sources For The Numbers
Lab-based datasets anchor the calorie math for raw apples. A good general reference is Harvard’s apple page, which lists about 95 calories per medium piece. For the underlying ingredient record and per-100-gram figures used across trackers, see USDA FoodData Central. These pages align on the core energy density that everyday logging uses.
Bottom Line On The Tart Green Staple
Count on ~95 calories for a mid-size fruit with peel. Adjust up or down with size, and keep the 52-per-100-gram idea in your back pocket. Pair it well, stay consistent on portions, and let the peel work for you on fiber. Want a clearer target? Try our recommended fiber intake.