A single medium strawberry (about 12 grams) contains roughly 4 calories, and a full cup of whole berries (144 grams) has about 46 calories.
If you’re tracking your daily intake, you’ve probably paused at the question of how many calories are in a single strawberry. It’s a common curiosity for anyone trying to eat lighter without giving up fruit. The answer is surprisingly low, but the real story is in how you measure them.
A medium strawberry—about the size of a plump thumb—contains only about 4 calories. That makes it one of the most calorie-efficient fruits you can grab. This guide covers the calorie counts for whole berries, sliced, and by weight, so you can fit them into your plan without guesswork.
Calories in Strawberries by Size and Serving
One medium strawberry weighs roughly 12 grams and delivers about 4 calories, per University of Rochester Medical Center data. If you grab a larger berry (around 18 grams), you’re looking at about 6 calories. A cup of whole strawberries (about 8 medium berries) comes in at 46 calories overall, while a cup of halved berries pushes that to 49 calories due to the slightly higher weight per cup.
For gram-based tracking, a 100-gram serving of raw strawberries contains just 32 calories. That’s one of the lowest calorie densities among common fruits—comparable to melon and well below bananas or grapes. The low calorie count means you can eat a generous portion without blowing your daily budget. Keep in mind that these values are averages; actual berries vary in size and sweetness.
Why Strawberries Are a Diet-Friendly Choice
Strawberries are more than just low-calorie. Their nutritional makeup supports weight management, blood sugar stability, and overall wellness. The combination of fiber, water, and antioxidants makes them a favorite among dietitians. Here’s a closer look at what one cup delivers.
- Low in sugar: A cup of whole strawberries has only about 7 grams of sugar—less than a medium apple. The fiber content (3 grams per cup) helps slow sugar absorption.
- High in vitamin C: One cup provides over 100% of your daily vitamin C needs, supporting immune function and skin health.
- Rich in antioxidants: The anthocyanins in strawberries may help reduce oxidative stress and inflammation.
- Low glycemic impact: With an estimated glycemic index around 40, strawberries have a minimal effect on blood sugar.
- Natural hydration: Strawberries are about 91% water, adding to your fluid intake while providing nutrients.
These qualities make strawberries a versatile fruit for any meal plan. They pair well with yogurt, oatmeal, or salads, and their natural sweetness can satisfy a sugar craving without added calories.
The Nutrient Profile Beyond Calories
Beyond the low calorie count, strawberries pack a surprising amount of nutrition per serving. As NC State Extension notes in its strawberries immune health article, they are an excellent source of vitamin C, an antioxidant essential for immune function and skin repair. A single cup of whole strawberries provides over 100% of the daily value for vitamin C, along with manganese, folate, and potassium.
The antioxidant profile deserves special mention. Strawberries contain anthocyanins, which give them their red color and act as powerful antioxidants. Research suggests these compounds may help reduce oxidative stress and support heart health.
| Nutrient | Amount per Cup (144g) | % Daily Value |
|---|---|---|
| Calories | 46 | 2% |
| Carbohydrates | 11 g | — |
| Fiber | 3 g | — |
| Total Sugars | 7 g | — |
| Vitamin C | 98 mg | 98% |
| Manganese | 0.5 mg | 24% |
| Folate | 35 mcg | 9% |
| Potassium | 220 mg | — |
These nutrients work together to support everything from immune defense to bone health. The fiber and water content also promote fullness, making strawberries a smart choice for anyone managing their weight or blood sugar.
How Strawberries Compare to Other Fruits
When stacked against other common fruits, strawberries stand out for their low calorie density and high nutrient yield. Here’s how they compare per 100-gram serving to a few popular choices.
- Strawberries vs. Bananas: Bananas have about 89 calories per 100g—nearly three times as many as strawberries. Strawberries also offer more vitamin C and fiber per calorie.
- Strawberries vs. Oranges: Oranges have about 47 calories per 100g, slightly more than strawberries. But strawberries provide more vitamin C per cup, as noted by WebMD.
- Strawberries vs. Grapes: Grapes contain around 69 calories per 100g, more than double strawberries. The sugar content in grapes is also higher.
- Strawberries vs. Blueberries: Blueberries are close at 57 calories per 100g but have less vitamin C than strawberries.
The comparison shows that strawberries are one of the most nutrient-dense fruits per calorie. They’re an excellent choice for adding volume and flavor to your diet without adding excess energy.
Strawberries for Specific Health Goals
Strawberries’ low calorie and high nutrient profile makes them useful for several health objectives. For kidney health, the National Kidney Foundation highlights strawberries as a superfood, noting that one cup contains about 220mg of potassium—a moderate amount that fits into a kidney-friendly diet. You can see their detailed potassium in strawberries fact sheet for more information.
For weight loss, the low energy density and high water volume support fullness. The 3g of fiber per cup further slows digestion. For blood sugar, the low glycemic index means minimal spikes.
| Health Goal | Strawberry Serving | Key Benefit |
|---|---|---|
| Kidney Health | 1 cup whole berries | 220mg potassium fits kidney-friendly limits |
| Weight Management | 2 cups whole berries (~92 cal) | Low calorie + high fiber promotes fullness |
| Blood Sugar Control | 1 cup whole berries (~46 cal, low GI) | Minimal impact on blood glucose |
These applications show strawberries are a strategic food for specific needs. Always check with your healthcare provider for personalized dietary advice, especially for conditions like kidney disease.
The Bottom Line
Strawberries are one of the lowest-calorie fruits you can eat, with a single medium berry providing just 4 calories and a full cup about 46 calories. Beyond the low count, they deliver substantial vitamin C, fiber, and antioxidants for very few calories. They fit into nearly any eating plan, from weight loss to blood sugar management.
For the most accurate calorie tracking for your specific meal plan, consult a registered dietitian who can tailor portion sizes to your daily needs and health goals.
References & Sources
- NC State Extension. “Nutritional Value of Strawberries” Strawberries are an excellent source of vitamin C, an antioxidant necessary for immune and skin health.
- National Kidney Foundation. “441 Patflyer Strawberry” Strawberries contain potassium, with about 220mg per cup, supporting heart and muscle function.