Quick Answer: How many grapes are 100g? About 20 medium grapes, since an average seedless grape weighs roughly 5g. Small grapes bring that up to about 30, and large grapes down to about 12 to 15. 100g of grapes has around 69 calories and 15.5g of natural sugar, roughly ⅔ cup. Use the calculator below to convert count and grams.
🍇 Grapes: Count ↔ Grams Calculator
Type in either box. Based on USDA values for raw red or green grapes.
How Many Grapes Are 100g by Size
| Grape Size | Weight Each | Grapes in 100g |
|---|---|---|
| Small | ~3.5g | ~28 to 30 |
| Medium seedless | ~5g | ~20 |
| Large (globe or muscat) | ~7–8g | ~12 to 15 |
| 1 cup | ~151g | ~30 medium grapes |
Keep reading for the full nutrition in 100g of grapes, how red and green compare, and how to fit grapes into a balanced snack.
100g Grapes Nutrition
| Nutrient | Per 100g | % Daily Value |
|---|---|---|
| Calories | 69 kcal | 3% |
| Carbohydrates | 18.1g | 7% |
| Sugar | 15.5g | – |
| Fiber | 0.9g | 3% |
| Protein | 0.7g | 1% |
| Vitamin K | 14.6mcg | 12% |
| Potassium | 191mg | 4% |
Red and green grapes are almost identical in calories and sugar. Red and black grapes carry more anthocyanins and resveratrol, the plant compounds that give them their color, while green grapes are slightly lighter in flavor. Grapes are higher in sugar and lower in fiber than berries such as blueberries, which have 57 calories and 2.4g of fiber per 100g.
Fresh Grapes vs Raisins
Raisins are simply dried grapes, so drying concentrates everything. 100g of raisins has about 299 calories, more than four times as much as fresh grapes, and it takes about 4 to 5 grams of fresh grapes to make 1 gram of raisins. A handful of fresh grapes is far more filling for the calories. For dried portions, see how many raisins is 30g.
How Many Grapes Make a Healthy Snack?
A typical fruit serving is about ½ to 1 cup of grapes, roughly 15 to 30 medium grapes. Because grapes are easy to eat by the handful, counting out a portion into a bowl helps avoid overeating, especially in the evening, as covered in our guide to midnight cravings. Frozen grapes make a refreshing treat that takes longer to eat. Pairing grapes with cheese or nuts adds protein and helps steady blood sugar, as suggested in good snacks for diabetics.
Frequently Asked Questions
About 20 medium seedless grapes, 28 to 30 small grapes, or 12 to 15 large grapes.
About 69 calories, with 18.1g of carbohydrates and 15.5g of natural sugar.
An average medium seedless grape weighs about 5g. Small grapes are about 3.5g and large grapes 7 to 8g.
About 30 medium grapes in a cup, which weighs roughly 151g.
Final Answer: How Many Grapes Are 100g
100g is about 20 medium grapes, or roughly ⅔ cup, with about 69 calories and 15.5g of natural sugar. Size changes the count from about 12 large grapes to 30 small ones. Count out a portion of 15 to 30 grapes and pair it with protein for a satisfying snack.