Quick Answer: How many grams in 1 cup blueberries? About 148g of fresh blueberries, or about 155g of frozen unsweetened blueberries, which pack a little more tightly. Half a cup of fresh blueberries is about 74g. One cup of fresh blueberries has roughly 84 calories and 3.6g of fiber. Use the calculator below to convert cups and grams.
🫐 Blueberries: Cups ↔ Grams Calculator
Type in either box. Based on about 57 calories, 2.4g fiber and 10g sugar per 100g.
How Many Grams in 1 Cup Blueberries: Conversion Chart
| Cups | Fresh Blueberries | Frozen Blueberries | Calories (Fresh) |
|---|---|---|---|
| ¼ cup | ~37g | ~39g | ~21 kcal |
| ⅓ cup | ~49g | ~52g | ~28 kcal |
| ½ cup | ~74g | ~78g | ~42 kcal |
| ¾ cup | ~111g | ~116g | ~63 kcal |
| 1 cup | ~148g | ~155g | ~84 kcal |
| 2 cups | ~296g | ~310g | ~169 kcal |
Keep reading for why frozen berries weigh more per cup, how many blueberries fit in a cup, and how to use these measurements in recipes.
Fresh vs Frozen Blueberries by the Cup
Frozen blueberries are often slightly smaller and settle into a measuring cup more tightly, and a thin layer of ice adds a little weight, so a cup of frozen berries weighs about 155g compared with 148g fresh. The nutrition is nearly identical for unsweetened frozen berries. For baking, many recipes suggest using frozen berries straight from the freezer and tossing them in a little flour first, which keeps them from sinking and bleeding color into the batter. Weighing ingredients in baking is the same reliable approach we recommend for flour.
How Many Blueberries Are in a Cup?
An average cultivated blueberry weighs about 1.5 to 2g, so a cup holds roughly 80 to 100 berries, depending on size. Wild blueberries are much smaller, so a cup holds far more of them. For a closer look at 100g portions and the full nutrition breakdown, see our guide to how much is 100g of blueberries.
Blueberries vs Other Berries by the Cup
A cup of whole strawberries weighs about 144g, close to blueberries, but has fewer calories because strawberries hold more water. Raspberries are lighter and hollow, so a cup weighs only about 123g, as covered in our guide to how many raspberries is 100g. A half cup of blueberries is also a popular topping for overnight oats, adding natural sweetness for about 42 calories.
Frequently Asked Questions
About 148g of fresh blueberries, or about 155g of frozen unsweetened blueberries.
About 74g of fresh blueberries, with roughly 42 calories.
About 84 calories for 1 cup (148g) of fresh blueberries, with 3.6g of fiber.
Roughly 80 to 100 cultivated blueberries, depending on their size. Wild blueberries are smaller, so a cup holds many more.
Final Answer: How Many Grams in 1 Cup Blueberries
1 cup of fresh blueberries weighs about 148g, and 1 cup of frozen unsweetened blueberries weighs about 155g. A cup of fresh berries has roughly 84 calories and 3.6g of fiber. For baking and calorie tracking, weighing berries gives more consistent results than measuring by the cup.