How Many Calories in a Banana? 105 Calories + Size Chart
A medium banana has 105 calories, 27g carbs, 3.1g fiber, 14.4g natural sugar, 1.3g protein, and 422mg potassium. Size matters more than ripeness for calories: a small banana is about 90 calories, a large banana is about 121 calories, and an extra-large banana is about 135 calories. Use the chart and calculator below for 100g, half banana, sliced cup, mashed cup, peanut butter, smoothies, chips, and food logs.
How many calories are in a banana?
Medium banana
105
calories in 118g peeled
Small banana
90
calories in 101g peeled
Large banana
121
calories in 136g peeled
A medium banana has 105 calories, and 100g of raw banana has 89 calories according to USDA FoodData Central. The most useful banana calorie shortcut is size-based: small 90 calories, medium 105 calories, large 121 calories, extra-large 135 calories. For recipes, 1 cup sliced is about 134 calories and 1 cup mashed is about 200 calories. A medium banana also has about 27g carbs, 1.3g protein, 0.4g fat, 3g fiber, 14g natural sugar, and 422mg potassium.
For food logging, the answer changes only when the edible weight changes: peeled grams x 0.89 = calories. That means half a medium banana is about 53 calories, a medium banana with peanut butter is usually 200-300+ calories depending on the spoon size, and banana chips are far denser because the water has been removed.
| USDA answer to cite | Value | When to use it |
|---|---|---|
| USDA raw banana reference | 89 calories per 100g | Use for gram-based food logs and recipe scaling. |
| 1 medium banana | 105 calories in 118g peeled | Best default for "1 banana calories" when the fruit looks average. |
| Carbs in 1 medium banana | 27.0g total carbs, 23.9g net carbs | Use for carb-counting context, not medical advice. |
| Cup portions | 134 calories sliced, 200 mashed | Use for cereal, yogurt bowls, pancakes and banana bread. |
Source
USDA FoodData Central, Bananas raw, FDC ID 173944
Calculation
Peeled edible grams x 0.89 calories per gram, rounded to the nearest calorie
Reviewed
Source-checked June 11, 2026; values are food-log planning estimates
Banana calorie calculator
Calculate banana calories by size or grams
Choose a common banana size or enter the edible weight after peeling. Estimates use USDA per-100g raw banana values.
Estimated calories
calories in 118g edible banana
Food log entry
118g peeled banana: 105 calories, 26.9g carbs, 1.3g protein, 0.4g fat, 3.1g fiber, 14.4g sugar, 422mg potassium
For the most accurate entry, weigh the peeled edible portion. If you weigh the banana with the peel on, the calorie estimate will run high.
Banana calories by size and ripeness
For calories, size and peeled weight matter more than ripeness. A green, yellow, or spotty banana of the same edible weight is logged with the same USDA calorie math. Ripeness mostly changes sweetness, resistant starch, and how quickly the banana may digest.
| Size | Peeled weight | Calories |
|---|---|---|
| Extra-small banana | 81g | 72 |
| Small banana | 101g | 90 |
| Medium banana | 118g | 105 |
| Large banana | 136g | 121 |
| Extra-large banana | 152g | 135 |
| Ripeness | Calories | What changes | Best use |
|---|---|---|---|
| Green or underripe | 105 per medium | Less sweet; more resistant starch | Slower-digesting snack, food logging by weight |
| Yellow and ripe | 105 per medium | Balanced starch and sugar | Default snack, lunch box, pre-workout |
| Spotty or overripe | 105 per medium | Sweeter; less resistant starch | Smoothies, baking, quick-digesting carbs |
Banana calorie shortcuts for common searches
If you need the answer fast, match your question to the closest row. Use the peeled edible portion when weighing, because peel-on weight does not match USDA nutrition data.
| Search intent | Best Calorique answer |
|---|---|
| 1 banana calories | Use 105 calories when size is unknown and the banana looks medium; use 90 for small and 121 for large. |
| 1 medium banana calories | A medium banana is about 118g edible portion and has 105 calories, 27.0g carbs, 3.1g fiber and 422mg potassium. |
| How many calories and carbs in a banana? | A medium banana has 105 calories, 27.0g total carbs, 3.1g fiber and about 23.9g net carbs. |
| Banana calories per 100g | USDA raw banana is 89 calories per 100g edible peeled portion. |
| Half banana calories | Half a medium banana is about 59g edible portion and has roughly 53 calories. |
| Sliced or mashed banana calories | 1 cup sliced banana is about 134 calories; 1 cup mashed banana is about 200 calories. |
| Frozen banana calories | Freezing does not change the calories: a frozen medium banana is still about 105 calories before toppings. |
| Banana chips calories | Banana chips are concentrated and often fried or sweetened; check the label, because 1 ounce can land around 140-170 calories. |
| Banana vs apple calories | A medium banana is about 105 calories; a medium apple is often about 95 calories, so the difference is small. |
| Is a banana keto-friendly? | A medium banana has about 27g total carbs and 23.9g net carbs, so it is usually not a strict-keto default. |
| Banana calories with peel | Do not count the peel. Weigh the peeled edible portion or use the size chart. |
| Do ripe bananas have more calories? | Not meaningfully. Ripeness changes starch and sugar balance, not the calorie estimate for the same peeled weight. |
Why USDA 89 calories per 100g becomes 105 calories for 1 medium banana
The two numbers answer different serving sizes. USDA FoodData Central gives raw banana as 89 calories per 100g edible portion. A medium banana is about 118g edible portion, so the math is 89 x 1.18 = 105 calories.
For food logs, weigh the peeled edible banana if you can. If you only know the size, use 90 calories for small, 105 for medium, 121 for large, and 135 for extra-large.
Nutrition safety note
Use this page for calorie logging and nutrition planning, not as personal medical advice. If you manage diabetes, kidney disease, a potassium restriction, an eating disorder, or a prescribed nutrition plan, confirm fruit portions with a qualified clinician or registered dietitian.
1 medium banana calories, protein, carbs and sugar
For the exact searches "1 medium banana calories," "medium banana calories protein," and "carbs in medium banana," the USDA-based answer is 105 calories for a 118g medium banana. That same medium banana provides about 27.0g carbs, 1.3g protein, 0.4g fat, 3.1g fiber, 23.9g net carbs, 14.4g natural sugar, and 422mg potassium.
USDA banana raw nutrition per 100g: calories, carbs, protein and fat
For exact food logging, the cleanest reference is the USDA raw banana entry per 100g edible portion: 89 calories, 22.84g carbs, 1.09g protein, 0.33g fat, 2.6g fiber, 12.23g sugar, and 358mg potassium. A medium banana is larger than 100g, so its total calories are higher at about 105 calories.
| USDA raw banana nutrient | Amount per 100g | Medium banana estimate |
|---|---|---|
| Calories | 89 kcal | 105 kcal |
| Carbohydrates | 22.84g | 27.0g |
| Protein | 1.09g | 1.3g |
| Total fat | 0.33g | 0.4g |
| Dietary fiber | 2.6g | 3.1g |
| Total sugars | 12.23g | 14.4g |
| Potassium | 358mg | 422mg |
Banana food log portions: peeled grams, sliced cup, mashed cup
Banana calories should be logged from the peeled edible portion, not the peel-on weight. If you are tracking a recipe instead of one whole banana, use the same USDA per-100g basis: 1 cup sliced banana is about 150g and 134 calories, while 1 cup mashed banana is about 225g and 200 calories.
| Food log portion | Edible weight | Calories | Best use |
|---|---|---|---|
| Half medium banana | 59g | 53 | Smoothies, oats, toddler portions |
| 1 medium banana | 118g | 105 | Snack, pre-workout, lunch box |
| 1 cup sliced banana | 150g | 134 | Cereal, yogurt bowls, fruit salads |
| 1 cup mashed banana | 225g | 200 | Banana bread, pancakes, baking |
| 100g peeled banana | 100g | 89 | Most accurate gram-based food log |
Cup weights are practical kitchen estimates scaled from USDA raw banana nutrition. For strict calorie tracking, weigh peeled grams.
Banana calories with peanut butter, smoothies and oatmeal
The banana is often the easy part of the calorie estimate. Add-ons such as peanut butter, milk, yogurt, protein powder, honey, nuts and oats can contribute more calories than the fruit itself, so log the banana first and then add each ingredient separately.
| Serving | Calorie estimate | Tracking note |
|---|---|---|
| Medium banana only | 105 calories | Default snack or food-log entry when the banana is about 118g peeled. |
| Medium banana + 1 tbsp peanut butter | about 200 calories | Add roughly 95 calories, depending on brand and tablespoon weight. |
| Medium banana + 2 tbsp peanut butter | about 295 calories | More filling, but the peanut butter contributes more calories than the banana. |
| Banana in smoothie | 105 calories before liquids or add-ins | Milk, yogurt, protein powder, honey and nut butter determine the final smoothie total. |
| Banana in oatmeal | 105 calories before oats and toppings | Log the banana separately from oats, milk, nuts and sweeteners for better accuracy. |
Peanut butter varies by brand and spoon weight. Use the nutrition label when precision matters.
Banana calorie comparisons: apple, chips, frozen banana and keto
These are the follow-up questions people usually ask after the basic 105-calorie answer. Use the fresh banana size chart for whole fruit, then switch to package labels when the banana is dried, fried, sweetened, dipped, blended or baked.
| Comparison | Practical answer |
|---|---|
| Banana vs apple calories | A medium banana is about 105 calories; a medium apple is commonly about 95 calories. The difference is small, so choose by portion, fiber, preference, and the rest of the meal. |
| Fresh banana vs banana chips | Fresh banana is water-rich and about 105 calories per medium fruit. Banana chips are dehydrated and often fried or sweetened, so a small 1 ounce serving can be around 140-170 calories by label. |
| Fresh banana vs frozen banana | Freezing changes texture, not the basic calorie math. One frozen medium banana remains about 105 calories before chocolate, yogurt, nut butter, smoothie liquid, or other add-ins. |
| Banana on keto or low carb | A medium banana has about 27g total carbs and 23.9g net carbs. That is usually too high for strict keto, but a weighed small slice can fit some flexible low-carb plans. |
Brand labels matter most for banana chips, banana bread, smoothies, frozen desserts and chocolate-covered bananas because added oil, sugar, flour, dairy and nut butter can exceed the fruit calories.
Banana Nutrition Database
Per-gram banana calories, portions, burn-time estimates and related fruits.
Recipe Nutrition Calculator
Scale banana calories inside smoothies, pancakes, oatmeal and banana bread.
Daily Calorie Calculator
Fit a 105-calorie banana into your maintenance, cut or surplus target.
Walking Calories
Estimate the walking time needed to burn a small, medium or large banana.
Banana Chips Calories
Keep dried or fried banana chips separate from fresh banana calorie math.
Egg Calories
Pair banana carbs with a protein source and compare a simple breakfast add-on.
Key Takeaways
- →A medium banana (118g) contains 105 calories, 27g carbs, 3g fiber, 422mg potassium, and 1.3g protein — per USDA FoodData Central.
- →Bananas have a low glycemic index of 42–51 depending on ripeness — lower than white rice (73) or white bread (75), per the International Glycemic Index Database.
- →Unripe bananas contain more resistant starch; ripening shifts the same banana toward simpler sugars while the calorie estimate stays tied to peeled weight.
- →A 2012 PLOS ONE cycling study found banana carbohydrate performed comparably to sports drink carbohydrate in that protocol; use workout fuel choices based on duration, intensity and tolerance.
- →Calorie range across sizes: approximately 72 calories (extra-small) to 135 calories (extra-large) — the size you choose matters more than how ripe it is.
The Myth That Refuses to Die
Somewhere between the low-carb revolution of the early 2000s and the rise of ketogenic dieting, bananas became a villain. Trainers told clients to avoid them. Influencers counted their grams of fructose. Fitness communities called them “candy bars” disguised as health food.
That framing usually skips the portion math. A medium banana contains 105 calories, 27g carbs, 3.1g fiber, 14.4g natural sugar, and 422mg potassium. For most food logs, the practical question is not whether bananas are universally good or bad; it is whether the serving size fits the day's calories, carbs, fiber, protein, and medical context.
What follows is a source-checked breakdown: calorie counts by size, macronutrients, ripeness context, common portions, and caveats for people who need individualized nutrition guidance.
Banana Calories by Size: The Complete Table
All data sourced from the USDA FoodData Central database (FDC ID 173944, Bananas, raw). The calorie counts below are for the edible banana portion at the stated serving size.
| Size | Length | Weight (g) | Calories | Carbs (g) | Fiber (g) | Sugar (g) | Protein (g) | Potassium (mg) |
|---|---|---|---|---|---|---|---|---|
| Extra small | Under 6" | 81g | 72 | 18.5 | 2.1 | 9.9 | 0.9 | 291 |
| Small | 6–6.75" | 101g | 90 | 23.1 | 2.6 | 12.4 | 1.1 | 362 |
| Medium | 7–7.75" | 118g | 105 | 27.0 | 3.1 | 14.4 | 1.3 | 422 |
| Large | 8–8.75" | 136g | 121 | 31.1 | 3.5 | 16.6 | 1.5 | 487 |
| Extra large | 9" or longer | 152g | 135 | 34.7 | 3.9 | 18.5 | 1.7 | 544 |
| 100g (reference) | — | 100g | 89 | 22.8 | 2.6 | 12.2 | 1.1 | 358 |
Source: USDA FoodData Central, Bananas, raw (FDC ID 173944). Values represent edible portion after peeling.
Source-checked June 11, 2026
Where these banana calorie numbers come from
Calorique scales the banana calculator and serving-size tables from the USDA FoodData Central raw banana entry, then uses Harvard Nutrition Source for the practical ripeness and glycemic-index context. The most important search answer stays simple: 1 medium banana is 118g edible portion and has 105 calories; the USDA 100g reference is 89 calories, 22.84g carbs, 1.09g protein, 0.33g fat, 2.6g fiber and 358mg potassium.
- USDA FoodData Central - Bananas, raw, FDC ID 173944
- Harvard T.H. Chan Nutrition Source — bananas, potassium, resistant starch and GI context
- Calorique banana nutrition database page for per-gram portions, burn-time estimates and related fruits.
Complete Micronutrient Profile of a Medium Banana
Beyond calories and macros, a medium banana is a meaningful source of several micronutrients that matter for athletic performance, cardiovascular health, and everyday function. Based on USDA data for one medium banana (118g):
- Potassium: 422mg (9% DV) — Relevant for muscle contraction, nerve signaling, and electrolyte balance. The Dietary Guidelines for Americans identifies potassium as a “nutrient of public health concern” because many Americans fall short of the 4,700mg daily reference.
- Vitamin B6: 0.43mg (25% DV) — Pyridoxine is involved in protein metabolism, neurotransmitter synthesis (serotonin, dopamine), and glycogen breakdown during exercise. A banana covers roughly a quarter of your daily need in one fruit.
- Vitamin C: 10.3mg (11% DV) — An antioxidant essential for collagen synthesis (connective tissue repair), iron absorption, and immune function.
- Magnesium: 31.9mg (8% DV) — Involved in over 300 enzymatic reactions, including ATP energy production. Adequate magnesium status is associated with improved exercise performance, per a 2017 review in Nutrients.
- Folate: 23.6mcg (6% DV) — Essential for DNA synthesis and cell division; particularly important during pregnancy.
- Riboflavin (B2): 0.086mg (7% DV) — Key role in energy metabolism; involved in the electron transport chain for ATP production.
- Manganese: 0.32mg (14% DV) — Cofactor for antioxidant enzyme superoxide dismutase (SOD); supports bone formation and carbohydrate metabolism.
Ripeness, Resistant Starch, and the Glycemic Index
This is where banana nutrition gets genuinely interesting — and where most simplistic “bananas are high-sugar” takes fall apart.
A green, unripe banana contains more resistant starch than a ripe banana. Resistant starch behaves more like dietary fiber than rapidly digested carbohydrate, so ripeness can change texture, sweetness, and digestion speed even when the calorie estimate for the same peeled weight is effectively unchanged. Glycemic-index references place slightly underripe bananas around GI 42 in population testing, but individual response can differ.
As a banana ripens, enzymes convert resistant starch into simpler sugars — sucrose, fructose, and glucose. By the time a banana has brown spots, much of its resistant starch has converted, so it usually tastes sweeter and digests faster. Harvard Nutrition Source summarizes International Glycemic Index Database values at GI 42 for slightly underripe bananas and GI 51 for ripe bananas. Individual response still varies by portion size, ripeness, prior meal, activity and glucose tolerance.
| Ripeness Stage | Appearance | GI context | Resistant Starch | Best For |
|---|---|---|---|---|
| Green/unripe | Firm, all green | Lowest of the common ripe stages | High (70–80%) | Higher resistant-starch option |
| Just ripe | Yellow, firm | ~42 per Harvard for slightly underripe | Moderate | General use, pre-workout |
| Ripe | Yellow, soft | ~51 per Harvard for ripe | Low | Pre/post-workout, smoothies |
| Overripe | Brown spots, very soft | Usually faster-digesting than firm yellow | Very low | Baking, immediate post-workout |
Source: Harvard T.H. Chan Nutrition Source summary of International Glycemic Index Database values. GI is a population estimate, not a personal glucose prediction.
For context on how banana GI compares to commonly eaten foods: white rice has a GI of 73, white bread is 75, and a bagel is around 72 according to the Harvard Health GI reference. Even so, GI is only a population-level comparison. Portion size, ripeness, the rest of the meal, medications, activity, and individual glucose tolerance can matter more than the table value.
Bananas and Athletic Performance: What the Research Shows
The fitness community has long used bananas as workout fuel — and the research backs this up more robustly than most sports nutrition advice.
Pre-Workout: Fueling Muscle Glycogen
Consuming carbohydrates 30–60 minutes before exercise tops off muscle glycogen stores and delays the onset of fatigue during moderate-to-high intensity sessions. The ACSM (American College of Sports Medicine) recommends 1–4g of carbohydrate per kilogram of body weight in the hours before exercise. A medium banana provides 27g of carbohydrates — a practical, easily digestible option that sits well in the stomach compared to fat-heavy or fiber-dense pre-workout foods.
During Exercise: The 2012 PLOS ONE Study
A landmark 2012 study published in PLOS ONE (Nieman et al.) compared banana consumption to Gatorade during a 75km cycling time trial in trained cyclists. Researchers measured metabolism, inflammation markers, and performance. Result: banana intake and sports drink intake produced equivalent cycling performance and very similar metabolic profiles. The banana group showed slightly lower prostaglandin levels (an inflammatory marker) than the sports drink group. The authors concluded that bananas represent “a viable and cost-effective alternative to carbohydrate sports drinks.”
Post-Workout: Glycogen Replenishment and Electrolyte Restoration
After hard training, carbohydrate intake can help replenish glycogen, especially when the next session is soon. A banana eaten post-workout provides about 27g carbs and 422mg potassium; pair it with a protein source such as Greek yogurt, a protein shake, or eggs when the meal also needs protein. For long, hot, or high-sweat sessions, sodium and total fluid matter too.
A practical post-workout example: one medium banana + one cup of low-fat Greek yogurt = approximately 215 calories, 38g carbohydrates, 17g protein. This hits the carbohydrate-to-protein ratio squarely, costs roughly $1.50, and requires zero preparation.
Bananas and Weight Loss: The Evidence-Based Perspective
No food determines weight change in isolation. A banana is best treated as a 105-calorie, 27g-carb fruit serving that can fit a calorie deficit, maintenance plan, or surplus depending on the rest of the day.
A 2017 systematic review published in Nutrients analyzed 185 studies on dietary fiber and found consistent, significant associations between higher fiber intake and lower body weight across populations. Bananas contribute 3g of fiber per medium fruit, which is meaningful given that the average American consumes only 15–17g of fiber per day — far below the DRI (Dietary Reference Intake) of 25–38g. Every banana you eat moves you meaningfully closer to adequate fiber intake.
Additionally, unripe and just-ripe bananas contain resistant starch, which is commonly discussed as a prebiotic-style carbohydrate. That is useful nutrition context, but it should not be read as a promise of weight-loss, glucose-control, or disease-treatment effects from one food.
The practical bottom line: log the serving accurately, then judge it against the whole day. If a banana replaces a higher-calorie snack, it may help the day fit your target. If it is added on top of an already high-calorie day, it adds 105 calories like any other food. Use our calorie calculator to estimate maintenance calories before eliminating foods arbitrarily.
Banana Potassium Context
A medium banana provides about 422mg potassium, which is why bananas are often mentioned in potassium discussions. Treat that as food-label context, not individualized medical advice. Potassium targets and restrictions can differ for people with kidney disease, blood-pressure medication questions, or a prescribed diet.
For general nutrition planning, bananas are a sodium-free fruit with meaningful potassium, but they are not the highest-potassium food. Beans, potatoes, leafy greens, yogurt, and some fish can contribute more potassium per serving depending on the food and portion.
For logging, one medium banana contributes about 9% of a 4,700mg daily potassium reference. If your clinician has given you a potassium limit or a specific DASH-style plan, follow that individualized plan instead of using a generic fruit rule.
How to Use Bananas in a Fitness Diet: Practical Examples
Given the nutrition data, here are practical ways a banana can fit a fitness-oriented food log:
Scenario 1: Morning Workout at 6am
You wake up fasted and need to train within 30 minutes. A full pre-workout meal is impractical. One option is half a medium banana, which is about 52 calories and 13g carbs. Whether that works depends on session length, intensity, and stomach tolerance.
Scenario 2: Cutting Phase — Managing Sweet Cravings
A medium banana at 105 calories can satisfy a sweet-food preference while adding 3.1g fiber. Frozen banana slices can work as a simple dessert-style option when the portion is logged and fits the day's calorie target.
Scenario 3: Intra-Workout Fuel for Sessions Over 90 Minutes
For sessions lasting longer than 90 minutes — long runs, cycling, extended strength training — carbohydrate intake during exercise sustains performance. The ACSM recommends 30–60g of carbohydrates per hour for efforts exceeding 60–90 minutes. Half a banana (13–14g carbs) every 30–45 minutes is an effective, natural fueling strategy. Cut bananas into sections beforehand and keep them in a zip-lock bag in your gym bag or jersey pocket.
Scenario 4: Muscle Building — Calorie-Dense Smoothies
When trying to gain lean mass, hitting calorie targets is often harder than it sounds — especially if your appetite is modest. A smoothie built around two bananas (210 calories, 54g carbs), 1 cup of whole milk (149 calories), 30g of protein powder (~120 calories), and 2 tablespoons of peanut butter (190 calories) delivers approximately 670 calories and 50g of protein in liquid form — easily consumed even when appetite is low. Use our calorie deficit calculator to determine whether you need a surplus and how large it should be.
How Bananas Compare to Other Common Fruits
| Fruit (100g) | Calories | Carbs (g) | Sugar (g) | Fiber (g) | Potassium (mg) | GI |
|---|---|---|---|---|---|---|
| Banana | 89 | 22.8 | 12.2 | 2.6 | 358 | 42–51 |
| Apple | 52 | 13.8 | 10.4 | 2.4 | 107 | 36–38 |
| Orange | 47 | 11.8 | 9.4 | 2.4 | 181 | 43–45 |
| Mango | 60 | 14.9 | 13.7 | 1.6 | 168 | 51–55 |
| Grapes | 69 | 18.1 | 15.5 | 0.9 | 191 | 46–59 |
| Strawberries | 32 | 7.7 | 4.9 | 2.0 | 153 | 40–41 |
Source: USDA FoodData Central; GI values from International Glycemic Index Database, University of Sydney.
Compared to other popular fruits, bananas are higher in calories and carbohydrates than strawberries, apples, and oranges per 100g. They are not the lowest-calorie fruit option, but they provide a useful mix of carbs, potassium, B6, and resistant-starch context.
Banana Recipes That Fit a Fitness Diet
High-Protein Banana Oat Pancakes
Blend 1 medium banana (105 cal), 2 large eggs (144 cal), and ¼ cup rolled oats (75 cal). Cook in a non-stick pan with cooking spray. Yields approximately 3 pancakes. Total: ~324 calories, 34g carbs, 17g protein, 10g fat. This is a complete pre-workout breakfast with a 2:1 carb-to-protein ratio — ideal before a resistance training session.
Frozen Banana “Nice Cream”
Freeze 2 overripe bananas overnight, then blend until smooth. Add 1 tablespoon of peanut butter and ½ teaspoon of vanilla extract. Macros per serving: ~275 calories, 52g carbs, 5g protein, 9g fat. A satisfying dessert alternative at less than 300 calories with no added sugar.
Post-Workout Recovery Smoothie
Blend 1 medium banana, 1 cup of unsweetened almond milk, 25g vanilla whey protein, and ½ cup of frozen berries. Macros: ~320 calories, 42g carbs, 28g protein, 4g fat. Hits the carbohydrate-to-protein recovery ratio (roughly 1.5:1) with a complete amino acid profile from the whey. Use our protein calculator to dial in your exact daily protein target.
Common Questions About Banana Calories Answered
Does cooking change banana calories?
Cooking a banana (grilling, baking, frying in plantain form) does not change the inherent calorie content of the banana itself. However, added ingredients during cooking — oil, butter, sugar, syrup — will add calories on top. A plain baked banana has approximately the same calories as a raw banana of the same weight (water loss during cooking concentrates the calories slightly per gram but the total caloric content stays essentially the same).
Do banana chips have the same calories as fresh bananas?
No — banana chips are significantly higher in calories. Dried banana chips typically contain approximately 350–450 calories per 100g because they are dehydrated (concentrated) and often fried in coconut or palm oil. A 30g serving (a small handful) of commercial banana chips contains roughly 150 calories compared to 27 calories for a 30g piece of fresh banana. Fresh bananas are far superior for calorie-conscious eating.
Frequently Asked Questions
How many calories are in a medium banana?
A medium banana (approximately 118g or about 7–7.75 inches long) contains 105 calories according to USDA FoodData Central. It provides 27g of carbohydrates, 3g of dietary fiber, 14g of natural sugars, 1.3g of protein, and virtually no fat.
Why is banana listed as 89 calories per 100g but 105 calories for a medium banana?
The USDA 89-calorie number is per 100g edible banana. A medium banana is about 118g edible portion, so 89 x 1.18 rounds to 105 calories.
How much protein is in a medium banana?
A medium banana has about 1.3g of protein. It is mainly a carbohydrate fruit: the same 118g serving has 105 calories, 27.0g carbs, 3.1g fiber, 14.4g total sugars, 0.4g fat and 422mg potassium.
How many carbs are in one medium banana?
One medium banana has about 27.0g total carbohydrates, 3.1g fiber and 23.9g net carbs. It also has 105 calories, 1.3g protein, 0.4g fat, 14.4g natural sugar and 422mg potassium.
How many calories and carbs are in one average banana?
If the size is unknown, treat an average banana as roughly medium: about 105 calories, 27.0g total carbs, 3.1g fiber and 23.9g net carbs. A small banana is closer to 90 calories and a large banana is closer to 121 calories.
How many calories are in a banana with peanut butter?
Start with 105 calories for a medium banana, then add the peanut butter from the label. A common estimate is about 95 extra calories for 1 tablespoon of peanut butter, or about 190 extra calories for 2 tablespoons, making the snack roughly 200 to 295 calories.
What banana calorie number should I log if I do not know the size?
Use 105 calories if the banana looks average or medium. Use 90 calories for a small 6 to 6.75 inch banana, 121 calories for a large 8 to 8.75 inch banana, or weigh the peeled edible portion and use 89 calories per 100g.
How many calories are in half a medium banana?
Half a medium banana is about 59g edible portion and has roughly 53 calories. It also provides about 13.5g carbs, 1.5g fiber, 7.2g natural sugar and 211mg potassium.
How many calories are in 100g of banana?
USDA FoodData Central lists raw banana at 89 calories per 100g edible portion. The same 100g serving has about 22.8g carbohydrates, 2.6g fiber, 12.2g sugar, 1.1g protein, and 358mg potassium.
Do bananas make you fat?
A banana does not determine weight change by itself. A medium banana has about 105 calories and 3.1g fiber, so log the serving and judge it against your overall calorie target, hunger pattern, protein intake, fiber intake and medical context.
Are bananas high in sugar?
A medium banana contains about 14.4g natural sugar and 3.1g fiber. Glycemic-index references place bananas in a low-to-moderate range depending on ripeness, but GI is not a personal glucose prediction. Use your own monitoring plan if blood glucose management matters.
Are bananas good before or after a workout?
Bananas can be practical before or after training because one medium banana provides about 27g carbs and 422mg potassium. For long or high-sweat sessions, total carbohydrate, fluid, sodium, timing, and stomach tolerance matter more than one specific food.
Does banana ripeness affect calorie count?
No. Ripeness does not meaningfully change calories — a green and a very ripe banana of the same edible weight have essentially the same caloric value. What changes is the carbohydrate structure: resistant starch converts to simpler sugars, so a slightly underripe banana usually digests more slowly than a very ripe banana. Harvard summarizes GI values around 42 for slightly underripe bananas and 51 for ripe bananas.
How much potassium is in a banana?
A medium banana contains approximately 422mg of potassium, about 9% of a 4,700mg daily reference. If you have kidney disease, a potassium restriction, blood-pressure medication questions, or a prescribed diet, confirm fruit portions with a qualified clinician or registered dietitian.
Can people with diabetes eat bananas?
People with diabetes may be able to include bananas, but the right portion depends on carbohydrate targets, medication plan, glucose response and clinician guidance. For logging, count a medium banana as about 27g total carbs and 23.9g net carbs; use a smaller weighed portion if your plan calls for fewer carbs.
Know Your Calorie Budget Before Tracking Individual Foods
Understanding how a banana fits into your diet requires knowing your total daily calorie target first. Use our free calorie calculator to find your TDEE and daily calorie goal based on your body stats and activity level — then make data-driven food choices that move the needle.
Calculate Your Daily Calories