One cup of fresh mango pieces (165 grams) contains 99 calories. That’s roughly what you’d get from a medium banana or a small apple, making mango a moderate-calorie fruit that packs a serious nutritional punch alongside its natural sweetness.
Calories by Serving Size
How many calories you’re actually eating depends on how you measure your mango. A one-cup serving of sliced mango (165 grams) is the standard reference at 99 calories. That works out to about 60 calories per 100 grams of fruit flesh. If you’re eating mango chunks straight from the cutting board, a single cup is roughly the amount that fits in a cupped hand.
A whole mango varies quite a bit depending on the variety. The common Tommy Atkins mangoes you see in most grocery stores weigh around 300 to 400 grams with the skin and pit still on. Once you remove those (which account for roughly 30 to 40 percent of the total weight), you’re left with about 200 to 250 grams of edible fruit, putting a whole mango somewhere in the range of 120 to 150 calories. Smaller varieties like Ataulfo (sometimes called honey mangoes) have thinner pits and less waste, but the flesh itself is calorically similar gram for gram.
Where Those Calories Come From
Nearly all of the calories in mango come from carbohydrates, specifically natural sugars. One cup contains about 23 grams of total sugar. Mango is essentially fat-free and contains only about 1.4 grams of protein per cup, so sugar is doing almost all the caloric heavy lifting here.
The sugar in mango is a mix of sucrose, glucose, and fructose, with sucrose being the dominant type in ripe fruit. This is part of why ripe mangoes taste so intensely sweet compared to other fruits. As a mango ripens, starches convert into these sugars, which is why an unripe green mango tastes starchy and tart while a soft, golden one tastes almost like candy.
Glycemic Index and Blood Sugar
Despite being sugar-rich, mango has a moderate glycemic index. Fresh mango scores around 56 on the GI scale, which places it in the medium range (anything under 55 is considered low, 56 to 69 is medium). For context, watermelon scores around 76 and pineapple around 66, so mango is gentler on blood sugar than many tropical fruits.
Part of the reason is fiber. One cup of mango provides about 2.9 grams of dietary fiber, with roughly two-thirds of that being insoluble fiber (the kind that aids digestion) and one-third being soluble fiber (the kind that slows sugar absorption). That soluble fiber helps moderate the blood sugar spike you’d otherwise get from 23 grams of sugar. Eating mango as whole fruit rather than juice preserves this fiber and keeps the glycemic impact lower.
Vitamins and Minerals Per Cup
Mango is one of the richest fruit sources of vitamin C, delivering 67 percent of your daily value in a single cup. That’s more than you’d get from a cup of strawberries. It also provides 18 percent of your daily folate (important for cell growth and especially relevant during pregnancy) and 10 percent of your daily vitamin A, which comes from beta-carotene, the same pigment that gives the flesh its orange color.
The deeper the orange color of the flesh, the more beta-carotene it contains. This is why varieties like Ataulfo and Alphonso, which have deep golden-orange flesh, tend to be slightly more nutrient-dense than paler varieties. You also get smaller amounts of potassium, vitamin E, and several B vitamins, making mango one of the more nutritionally complete fruits you can eat for under 100 calories.
Fresh vs. Dried vs. Frozen Mango
The 99-calorie figure applies to fresh, raw mango. Dried mango is a completely different story. Because the water has been removed, the sugars and calories are concentrated into a much smaller volume. A one-cup serving of dried mango can contain 320 to 500 calories depending on whether sugar has been added during processing. Most commercially dried mango has added sugar, pushing the calorie count even higher. If you’re watching your intake, check the label for “no sugar added” varieties, and treat dried mango more like a snack than a fruit serving.
Frozen mango chunks, on the other hand, are nutritionally almost identical to fresh. They’re typically frozen at peak ripeness with nothing added, so you’re looking at the same 60 calories per 100 grams. Canned mango in heavy syrup adds significant sugar and can bump a serving up to 150 calories or more.
How Mango Compares to Other Fruits
- Mango: 99 calories per cup, 23 g sugar
- Pineapple: 82 calories per cup, 16 g sugar
- Blueberries: 84 calories per cup, 15 g sugar
- Grapes: 104 calories per cup, 23 g sugar
- Banana: 105 calories per medium fruit, 14 g sugar
- Watermelon: 46 calories per cup, 9 g sugar
Mango sits on the higher end for both calories and sugar among common fruits, comparable to grapes and bananas. But it outperforms most of these in vitamin C and vitamin A content, so it’s a reasonable trade-off if you’re choosing fruits for nutritional density rather than just low calorie counts.