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Syns & Slimming World

How Many Syns in Maltesers?

By Jenny Updated

Maltesers occupy a curious place in the Slimming World universe. They feel light — those famously crunchy honeycomb centres wrapped in milk chocolate seem barely there — yet the syn count tells a different story entirely. The hollow middle saves you a little, but not nearly as much as the marketing suggests, and most members are genuinely shocked the first time they weigh out a portion and do the maths.

A single Malteser comes in at roughly half a syn, which sounds tiny until you remember nobody has ever stopped at one. A standard fun-size bag, the kind that slips into a lunchbox without a second thought, clocks in around nine syns. The bigger sharing bags — and let us be honest about the word 'sharing' — sail past twenty syns without breaking a sweat. For anyone working to a fifteen-syn daily allowance, half a bag eats the entire budget and then some.

The trick with Maltesers on plan is portion control, and the most reliable method is counting them out individually rather than eating from the bag. Ten Maltesers gives you a five-syn treat that feels properly indulgent, especially served alongside a mug of tea or scattered over a Müller Light. Some members freeze them, which slows the eating considerably and makes the chocolate shell shatter pleasingly between your teeth.

The airy texture is genuinely deceiving. Compared with a solid milk chocolate of equivalent weight, Maltesers do save you a few calories per gram, but the temptation to pour another handful is real. Treat them as a measured indulgence, weigh or count before you start, and they fit comfortably into a balanced week. Treat them as a bag to graze from in front of the television, and they will quietly demolish your syn allowance before the adverts finish.

Per serving

Maltesers — syn values

Portion Syns kcal
1 Malteser 0.5 11
5 Maltesers 2.5 55
10 Maltesers 5 110
Fun-size bag (37g) 9 187
Treat bag (68g) 17 343
Sharing bag (89g) 22 450
Large pouch (102g) 25 515
Syn values are based on Slimming World 2026 guidance. Always double-check with your group or app.

Numbers at a glance

Quick auto-calculated stats for Maltesers.

3%
of a 15-syn day
based on standard daily allowance
22kcal / syn
calories per syn
the lower, the more 'value' your syns get
7
portion sizes covered
from snack to full serving
0.5syns
cheapest portionat 1 Malteser
smallest serving

Brand breakdown

Popular supermarket and branded products, with the portion-level syn count.

Brand Product Portion Syns kcal
Mars Maltesers Original 1 piece 0.5 11
Mars Maltesers Fun Size Bag 37g bag 9 187
Mars Maltesers Sharing Bag 89g bag 22 450
Mars Maltesers Teasers Bar 35g bar 9 188
Mars Maltesers Buttons 32g bag 8 168
Mars Maltesers White Chocolate 37g bag 10 195
Mars Maltesers Truffles 1 truffle (10g) 3 56
Mars Maltesers Reindeer 29g 7 151

Lower-syn alternatives

Swaps that keep the feel of the original without the syn hit.

Meringue nests with berries

3 Syns per nest

A meringue nest at around 3 Syns filled with Free berries and fat-free yogurt gives you a sweet, crunchy treat for fewer Syns than a fun-size bag of Maltesers at 9 Syns. The portion feels generous and hits the same sweet spot.

Hi-Fi bar (HExB)

Free as HExB

A Slimming World Hi-Fi bar counts as a Healthy Extra B, making it effectively free. The chocolate varieties scratch the same itch as Maltesers while costing zero Syns. Keep a box in the cupboard for chocolate cravings.

Options hot chocolate sachet

2 Syns per sachet

An Options hot chocolate at 2 Syns delivers a warm chocolate fix for far fewer Syns than a fun-size Maltesers bag at 9. Made with hot water, it is comforting on cold evenings and takes longer to drink than it takes to eat a handful of Maltesers.

FAQs

How many syns in Maltesers?

A single Malteser is 0.5 Syns, so 10 Maltesers is 5 Syns. A fun-size bag (37g) is 9 Syns, a treat bag (68g) is 17 Syns, and a sharing bag (89g) is 22 Syns. Counting out individual Maltesers is the best way to control portions, as the bag sizes quickly push past a full day's allowance.

Are Maltesers free on Slimming World?

No, Maltesers are not Free Food. Even a single piece costs 0.5 Syns. The hollow centre makes them feel lighter than solid chocolate, but a fun-size bag still comes in at 9 Syns. They are a treat to be planned and counted rather than grazed on from the bag.

How many Maltesers can I have for 5 syns?

You can have 10 Maltesers for 5 Syns, which is a decent handful and feels properly indulgent if you eat them slowly. Some members freeze them first for extra crunch and to slow the eating down. Pair them with a cup of tea and they make a satisfying mid-evening treat.

What is the best low syn chocolate on Slimming World?

Maltesers are competitive at 0.5 Syns each, so 5 Maltesers for 2.5 Syns is a decent small treat. Curly Wurlys, Freddo bars, and two-finger KitKats also sit around 5-6 Syns. The key is choosing individually wrapped or countable portions rather than sharing bags or slabs.

Lower-syn treat alternatives

No lower-syn treat alternatives in our index — Maltesers is already at the lower end. Browse the full treat list →

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