19 %
Copper contributes to normal energy-yielding metabolism, to the normal function of the immune system and to the protection of cells from oxidative stress.
How many calories are in chocolate cake?
271kcal
in a 60 g slice
452 kcal per 100 g.
Source: UK CoFID 2021, record 11-1047. Checked 5 October 2026.
15.1 gFat
3.5 gProtein
0.84 gFibre
19 %Daily copper
What’s in a 60 g slice
More than half of a slice is carbohydrate. Sugars make up 21.4 g of that.
- 15.1 gFat
- 3.5 gProtein
- 32.3 gCarbohydrate
- 0.84 gFibre
- 8.2 gWater
- 0.1 gMinerals and the rest
About average for cakes, biscuits and pastries
Chocolate cake is 452 kcal per 100 g. The 134 cakes, biscuits and pastries in this database average 394.
Chocolate cake452
Cakes, biscuits and pastries average394
High in sugar
35.7 g of sugars per 100 g, which is red on a UK traffic-light label (the line is 22.5 g).
Sugars, per slice21.4 g
Salt, per slice0.5 g
Vitamins and minerals in chocolate cake
Two of the 17 recorded reach the “high in” level. Copper leads.
Only a trace
- Vitamin C
Show all 17 with amounts
Chloride229 mg, 29 %
Copper0.19 mg, 19 %
Vitamin B120.00036 mg, 14 %
Phosphorus98.4 mg, 14 %
Niacin (vitamin B3)1.1 mg, 7.1 %
Iron0.89 mg, 6.4 %
Magnesium22.8 mg, 6.1 %
Biotin0.00264 mg, 5.3 %
Riboflavin (vitamin B2)0.07 mg, 5.1 %
Potassium97.2 mg, 4.9 %
Zinc0.48 mg, 4.8 %
Calcium31.2 mg, 3.9 %
Thiamin (vitamin B1)0.04 mg, 3.8 %
Folate0.006 mg, 3 %
Vitamin B60.04 mg, 2.6 %
Manganese0.04 mg, 2.1 %
Pantothenic acid (vitamin B5)0.12 mg, 2 %
Badges use the UK legal thresholds per 100 g: 15 % of the reference intake for “source of”, 30 % for “high in”. A trace is shown as “trace” and never counts.
What chocolate cake doesn’t give you. And where to find it.
No recorded vitamin C, and only 3.3 % of the pantothenic acid reference intake and 4.3 % of the vitamin B6 reference intake per 100 g.
Vitamin C
Tracein chocolate cake
Find it inCherries, West Indian2150 % per 100 g
Pantothenic acid (vitamin B5)
3.3%in chocolate cake, per 100 g
Find it inLiver, calf, raw140 % per 100 g
Vitamin B6
4.3%in chocolate cake, per 100 g
Find it inWheatgerm184 % per 100 g
100 mgVitamin C, 125 %
0.075 mgSelenium, 136 %
0.00125 mgVitamin D, 25 %
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Made in Cambridgeshire
Made in the UK since 1998, with every nutrient and its declared amount listed on the label.
Chocolate cake against other cakes, biscuits and pastries
Per 100 g, brownies (chocolate) has the most copper in this comparison, followed by biscuits (fully coated with chocolate, with cream) and chocolate cake.
0.5mg
0.4mg
0.3mg
0.3mg
0.1mg
0.1mg
Brownies, chocolate+0.2 mg
Cake, chocolate, with butter icing, homemadethis page
Pastry, wholemeal, cooked−0.1 mg
All values per 100 g, from the same dataset. Differences are against chocolate cake.
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Questions about chocolate cake
What the numbers say to the questions people actually search.
How many calories are in a portion of chocolate cake?
A typical portion (60 g, a slice) gives 271 kcal. Per 100 g the figure is 452 kcal.
Is chocolate cake high in chloride?
Yes. Cake, chocolate, with butter icing, homemade has 381 mg chloride per 100 g, 48 % of the NRV, above the 30 % threshold for a “high in” claim.
Are these figures exact for chocolate cake?
No. They are calculated from a standard recipe in the UK Composition of Foods Integrated Dataset (CoFID, 2021). A different recipe, portion of sauce or cooking method will move them, so read them as a typical estimate.
Which vitamins and minerals does chocolate cake have most of?
By share of the daily reference intake: chloride (381 mg, 48 %), copper (0.32 mg, 32 %) and vitamin B12 (0.0006 mg, 24 %) per 100 g.
How these numbers were made
Every figure comes from the UK Composition of Foods Integrated Dataset (CoFID), 2021 edition, record 11-1047, Cake, chocolate, with butter icing, homemade, published by Public Health England under the Open Government Licence v3.0; this record is a calculated recipe estimate. Main data references: Recalculated 2014. Values are per 100 g of the edible part; a slice is 60 g, a slice, the usual UK portion for cakes, biscuits and pastries. Reference intakes follow Regulation (EU) 1169/2011 Annex XIII as retained in GB law; “source of”, “high in” and “low” follow Regulation (EC) 1924/2006, assessed per 100 g. Function lines are the authorised wording from the GB register of nutrition and health claims, credited to the nutrient. Energy is rounded to the whole kcal and kJ; other amounts to one decimal, or two below 1. A trace is shown as “trace” and never gets a figure or a badge; a nutrient never analysed is left off the page. We start from the dataset’s 2,887 records and keep 2,322: records weighed with bone, shell or skin, alcoholic drinks, infant foods, brand-named products, records with fewer than eight measured vitamins and minerals and near-identical variants are left out. Group context uses the 134 cakes, biscuits and pastries kept from the dataset; a rank counts only the foods with a measured figure for that nutrient. Food images are illustrations from Ingredient Atlas, released under CC0; they show the food, not the measured sample, and where no illustration of the exact food exists the nearest one is shown (here: Butter). Checked 5 October 2026. Contains public sector information licensed under the Open Government Licence v3.0.
More cakes, biscuits and pastries
From the same group, with calories per 100 g, and the foods with the most copper.
