Calories in Blueberries

100 g of blueberries has 57 kcal, and 1 cup of blueberries (148 g) has about 85 kcal.

57 kcalper 100 g

85 kcal in 1 cup (148 g)

Very low density · 0.57 kcal per g

Protein 0.7g 4% of the calories
Carbs 14.6g 91% of the calories
Fat 0.3g 4% of the calories

Per 100 g. Figures from USDA FoodData Central. Averages across measured samples; a few percent either way is normal. Updated 2026-10-04.

100 g is about 14 minutes of walking, or 5 minutes of running, for a 70 kg body - context, not a debt to work off.

Blueberries nutrition facts

A dash means nobody measured it - not that there is none of it.

Per serving: 1 cup (148 g)
Nutrient	Per 100 g	Per serving
Energy	57kcal	85kcal
Fat	0.31g	0.46g
Saturated Fat	-	-
Unsaturated Fat	-	-
Carbs	14.6g	21.6g
Sugars	-	-
Fiber	-	-
Protein	0.7g	1g
Salt	0g	0g
Water	84.2g	125g

Alcohol	0g	0g
Caffeine	0mg	0mg

Starch	0.03g	0.044g

Monounsaturated	0.047g	0.07g
Polyunsaturated	0.15g	0.22g
Omega-3	0.058g	0.086g
ALA	0.058g	0.086g
DHA	0g	0g
EPA	0g	0g
Omega-6	0.088g	0.13g
AA	0g	0g
LA	0.088g	0.13g
Trans Fat	0g	0g
Cholesterol	0mg	0mg

Vitamin B1 (Thiamine)	0.037mg	0.055mg
Vitamin B2 (Riboflavin)	0.041mg	0.061mg
Vitamin B3 (Niacin)	0.42mg	0.62mg
Vitamin B5 (Pantothenic Acid)	0.12mg	0.18mg
Vitamin B6 (Pyridoxine)	0.052mg	0.077mg
Vitamin B12 (Cobalamin)	0µg	0µg
Folate (Vitamin B9)	6µg	8.9µg
Vitamin A	3µg	4.4µg
Vitamin C	8.1mg	11.9mg
Vitamin D	0IU	0IU
Vitamin E	0.57mg	0.84mg
Vitamin K	19.3µg	28.6µg
Choline	6mg	8.9mg

Calcium	11.7mg	17.3mg
Copper	0.046mg	0.068mg
Iron	0.34mg	0.5mg
Magnesium	6.2mg	9.1mg
Manganese	0.42mg	0.63mg
Phosphorus	13mg	19.2mg
Potassium	85.6mg	127mg
Selenium	0.1µg	0.15µg
Zinc	0.085mg	0.13mg

Beta-carotene	32µg	47.4µg
Lycopene	0µg	0µg
Lutein + zeaxanthin	80µg	118µg
Flavonoids	181mg	268mg
Anthocyanidins	163mg	242mg
Flavan-3-ols	6.7mg	9.9mg
Flavones	0.2mg	0.3mg
Flavonols	10.6mg	15.7mg

Cystine	0.008g	0.012g
Histidine	0.011g	0.016g
Isoleucine	0.023g	0.034g
Leucine	0.044g	0.065g
Lysine	0.013g	0.019g
Methionine	0.012g	0.018g
Phenylalanine	0.026g	0.038g
Threonine	0.02g	0.03g
Tryptophan	0.003g	0.004g
Tyrosine	0.009g	0.013g
Valine	0.031g	0.046g

Read it as an averageIt is what a laboratory measured, averaged over samples - variety, ripeness and cut all move it, and a few percent either way is normal.

What stands out in blueberries

1 cup (148 g) is 85 kcal, about 4% of a 2,000 kcal day.

Low in fat0.31 g per 100 g
Low in salt0 g per 100 g

Claims follow the EU nutrition claims rules and the "high" warnings the UK/EU front-of-pack labels; the 2,000 kcal day is the reference intake for an average adult.

Calories in different amounts of blueberries

50 g	29 kcal
100 g	57 kcal
148 g1 cup	85 kcal
200 g	115 kcal
296 g2 servings	170 kcal

Any amount g 85 kcal

Foods with similar calories

Other published foods within reach of 57 kcal per 100 g, so the number has something to sit against.

Banana 40 kcal more 97kcal / 100 g

Apple 4 kcal more 61kcal / 100 g

Orange 7 kcal less 50kcal / 100 g

Raspberries 6 kcal less 51kcal / 100 g

Mango 3 kcal more 60kcal / 100 g

Peach 11 kcal less 46kcal / 100 g

Questions about blueberries

1 cup of blueberries (148 g) has about 85 kcal, and 100 g has 57 kcal.

Yes. 100 g of blueberries has 181 mg of flavonoids, mostly anthocyanidins.

100 g of blueberries covers this much of an adult's daily need: vitamin K 26%, manganese 21%.

It can be part of a diet that loses weight: what counts is the total calories you eat in a day, not any single food. 1 cup of blueberries (148 g) has about 85 kcal. The calorie calculator works out how many you need.

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