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How Many Calories in Blueberries, Frozen, Unsweetened?

Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by our editorial team. Last reviewed: 5 September 2026.

Fact-checked against original USDA source data by our editorial team.

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51
calories per 100g
79 calories per 1 cup, unthawed (155g)
0.4gProtein
12.2gCarbs
0.6gFat
2.7gFibre

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⚖ Kitchen Scales

Quick reference — common serving sizes

AmountCaloriesProtein
1 oz (28g)14 kcal0.1g
100g51 kcal0.4g
1 cup, unthawed79 kcal0.6g
grams
51kcal
0.4gprotein
12.2gcarbs
0.6gfat
2.7gfibre

A blueberries, frozen, unsweetened contains 51 calories per 100g. A typical 1 cup, unthawed (155g) provides about 79 calories. Blueberries, Frozen, Unsweetened is low in calories. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Blueberries, Frozen, Unsweetened Nutrition Facts

NutrientPer 100gPer serving (155g)
Calories51 kcal79 kcal
Protein0.4g0.6g
Carbohydrates12.2g18.9g
of which Sugars8.4g13.0g
Fat0.6g0.9g
of which Saturates0.1g0.2g
Fibre2.7g4.2g
Sodium1.0mg2mg
Potassium54.0mg84mg
Calcium8.0mg12mg
Iron0.2mg0.3mg
Vitamin C2.5mg3.9mg
Vitamin A2.0µg3µg
Selenium0.1µg0µg
Riboflavin (B2)0.0mg0.0mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

Useful for tracking blueberries, frozen, unsweetened

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Have a cat or dog? Check whether blueberries, frozen, unsweetened is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. Use a meal prep container set to portion out blueberries, frozen, unsweetened for the week. Tracking supplements too? Check drug and supplement interactions before combining anything new.

Good to know

Ripeness affects sugar content — a very ripe piece of fruit can carry noticeably more natural sugar than an under-ripe one of the same size.

Does blueberries, frozen, unsweetened fit your diet?

Weight management

At 51 calories per 100g, blueberries, frozen, unsweetened is calorie-light relative to its volume, which can help keep a meal within a calorie target without needing very small portions.

Frequently Asked Questions

How many calories in blueberries, frozen, unsweetened per 100g?

Blueberries, Frozen, Unsweetened contains 51 calories per 100g, based on USDA reference data.

Is blueberries, frozen, unsweetened high in calories?

A 1 cup, unthawed of blueberries, frozen, unsweetened (155g) has around 79 calories — roughly 4% of a 2,000-calorie daily intake.

Is blueberries, frozen, unsweetened good for weight loss?

At 51 calories per 100g, blueberries, frozen, unsweetened is relatively low in calories and can fit well into a weight-loss diet. A 1 cup, unthawed provides about 79 calories.

How much protein is in blueberries, frozen, unsweetened?

Blueberries, Frozen, Unsweetened contains 0.4g of protein per 100g.

Is blueberries, frozen, unsweetened a good source of fibre?

Blueberries, Frozen, Unsweetened is relatively low in fibre at 2.7g per 100g, so pairing it with fibre-rich sides (vegetables, whole grains, legumes) can help balance a meal.

How does blueberries, frozen, unsweetened compare to mammy-apple, (mamey), raw?

Blueberries, Frozen, Unsweetened has 51 calories per 100g, close to mammy-apple, (mamey), raw at 51 — 0 calories fewer per 100g. See the full macro breakdown above.

How many servings of blueberries, frozen, unsweetened for 20g of protein?

With 0.4g of protein per 100g, you'd need roughly 5000g of blueberries, frozen, unsweetened to reach 20g of protein

Foods with a similar calorie count

Other fruits closest to blueberries, frozen, unsweetened by calories per 100g:

FoodCaloriesProteinCarbsFat
Blueberries, Frozen, Unsweetened (this page)51 kcal0.4g12.2g0.6g
Mammy-apple, (mamey), Raw51 kcal0.5g12.5g0.5g
Pineapple, Raw, Extra Sweet Variety51 kcal0.5g13.5g0.1g
Mango Nectar, Canned51 kcal0.1g13.1g0.1g
Apple52 kcal0.3g13.8g0.2g
Boysenberries, Frozen, Unsweetened50 kcal1.1g12.2g0.3g
Cherries, Sour, Red, Raw50 kcal1.0g12.2g0.3g

More kit for blueberries, frozen, unsweetened tracking

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Last updated:

Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.