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Jaffa Cakes Weights and Calories (in Charts and Images)

If you’re looking to find out the weights and calories of McVitie’s Jaffa Cakes, then look no further, because I’ve done the research and put together all the information you need.

Read on to find out weight and calorie amounts for various Jaffa cakes serving amounts in charts and images.

Weight and Calories of One McVitie’s Jaffa Cake

The average weight of a single McVitie’s Jaffa Cake is 12.2g (0.43oz) and the calorie count for this serving size is 49kcal.

Each cake does vary by a gram or so, but the average overall average weight is 12.2g.

Weight of one jaffa cake is 12.2g

How Many McVittie’s Jaffa Cakes are in a Packet?

At the time of writing this article in 2021, there are 10 Jaffa Cakes in a single box of McVittie’s Jaffa Cakes. The total pack weight (excluding packaging) is 122g (4.3oz).

A twin pack contains two full packs of 10 jaffa cakes and weighs a total of 144g (5.1oz)

Weight and Calories of Various McVitie’s Jaffa Cake Servings

The table below shows the weights and calories for various serving sizes and up to a full pack of McVitie’s Jaffa Cakes, to help you to find the information you need:

Number of Jaffa CakesWeight per serving
(in grams and ounces)
Calories per serving
(in Kcal)
5 (half a pack)61g/2.2oz230
10 (full pack)122g/4.3oz460

How Many Jaffa Cakes are in a Serving?

Jaffa cakes are lower in calories than most biscuits, for example, one single plain digestive biscuit is 71kcal.

There’s no official guidance on a recommended jaffa cake serving size, but two jaffa cakes make a good under 100 calorie snack portion at 98kcal per serving.

A 200 calorie jaffa cake snack would be equal to four cakes at 196kcal in total.

Equipment and Information Used for This Article

I used precision scales that weigh to 0.01 of a gram which is regularly calibrated with a 100g weight. For more information see my recommended weighing scales here.

To make sure the information in this article is accurate, I researched and cross-referenced various sources (as well as original research) to obtain the correct weights and calories.

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