Opera cake: calories and nutrition facts

Opera cake has 392 kcal per 100 g. One serving, 1 Slice (80 g), has 314 kcal.

Calories: 392 kcal
Protein: 5.2 g
Carbohydrates: 37.6 g
Fat: 24 g

Per 100 g

Opera cake: how many calories?

Opera cake has 392 kcal per 100 g, with 5.2 g protein, 37.6 g carbs and 24 g fat. A 80 g serving (1 Slice) has 314 kcal. That is close to the average for Sweets (390 kcal per 100 g). Most of its calories come from fat.

Where the calories come from

Protein5%
Carbohydrates39%
Fat56%

Calculate a portion

Amountg

Calories: 314 kcal
Protein: 4.2 g
Carbohydrates: 30.1 g
Fat: 19.2 g

Nutrition facts

Nutrient	Per 100 g	Per serving (80 g)
Calories	392 kcal	314 kcal
Fat	24 g	19.2 g
of which saturated fat	13.4 g	10.7 g
Carbohydrates	37.6 g	30.1 g
of which sugars	33.3 g	26.6 g
Fiber	2.3 g	1.8 g
Protein	5.2 g	4.2 g
Sodium	42 mg	34 mg
Water	30.1 g	24.1 g
Vitamin C	0.5 mg	0.4 mg
Calcium	42 mg	34 mg
Iron	3.2 mg	2.6 mg
Potassium	240 mg	192 mg
Magnesium	44 mg	35 mg

Source: Ciqual food composition table (ANSES, France). Data updated on 2 September 2026.

Share of reference intakes

Per 100 g, compared with an adult's reference intakes (2,000 kcal a day, Regulation (EU) No 1169/2011).

Nutrient	Of reference intake
Calories(392 kcal)	20%
Fat(24 g)	34%
of which saturated fat(13.4 g)	67%
Carbohydrates(37.6 g)	14%
of which sugars(33.3 g)	37%
Protein(5.2 g)	10%
Salt(0.11 g)	2%

What the EU thresholds say

Nutrition claim thresholds from Regulation (EC) No 1924/2006, per 100 g.

Low sodium (120 mg or less)

Opera cake: frequently asked questions

Opera cake: how many calories per serving?

A 80 g serving (1 Slice) has 314 kcal.

Opera cake: how much protein?

Opera cake contains 5.2 g of protein per 100 g, 10% of the 50 g reference intake.

Opera cake: how much fibre?

Opera cake provides 2.3 g of fibre per 100 g, 9% of the 25 g a day recommended by EFSA.

Opera cake: how much makes 100 kcal?

100 kcal is about 26 g of this food.

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