How Many Calories in a Milky Way?
A single UK Milky Way bar (21.5 g) has 96 calories, with 447 kcal per 100 g. Scan the confectionery shelf asking how many calories in a Milky Way versus the rest, and it shares the podium with just one rival: the Freddo, also 96 — except the Milky Way gives you a bigger bar for the same price in calories.
You'd need to walk about 19 minutes to burn the 96 calories in a standard 21.5 g bar.
How long does it take to burn off a Milky Way?
A standard 21.5 g bar is 96 kcal. Enter your weight and the amount you ate to see how long it takes you to burn that off:
lb
| Activity | Time to burn 96 kcal |
|---|---|
| Walking, brisk | 19 min |
| Cycling, moderate | 12 min |
| Swimming, moderate | 14 min |
| Jogging | 11 min |
| Weight training, moderate | 21 min |
Times are for a 154 lb (11 st) adult at a steady pace; change the weight to see yours. The amount is set to the portion in the text (21.5 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Quick facts
- Bar sizes and multipacks
- Why it stays under 100 calories
- The American Milky Way is a different bar
- How a Milky Way compares
- Most popular Milky Way products
- Milky Way FAQs
Quick facts
| Nutrient | Per bar (21.5 g) | Per 100 g | RI%* (bar) |
|---|---|---|---|
| Calories | 96 kcal / 402 kJ | 447 kcal / 1,870 kJ | 5% |
| Protein | 0.8 g | 3.6 g | 2% |
| Carbohydrates | 15.5 g | 72 g | 6% |
| Fat | 3.4 g | 16 g | 5% |
| Sugar | 13.3 g | 62 g | 15% |
| Salt | 0.09 g | 0.4 g | 1% |
*Reference intake of an average adult (2,000 kcal a day), as used on UK food labels.
Verified nutrition data
Numbers on this page come from CoFID, the UK government’s Composition of Foods Integrated Dataset, and from manufacturer labels where a branded product is named. Last verified August 2026. How we verify our data →
One number needs a second look. Against the 90 g label reference, 13.3 g of sugar is a modest 15% — but the NHS advises no more than 30 g of free sugars a day, and against that, one small bar spends over 40% of the budget. The WHO draws its free-sugars line in the same territory. Small bar, dense sugar.
Bar sizes and multipacks
The standard single bar is 21.5 g and 96 calories. The twin pack — the format most supermarkets actually stock — is two bars and 192 calories, and it is worth deciding in advance whether "one Milky Way" means one bar or one wrapper, because the wrapper doubles the answer.
Fun-size bars from the sharing bag are smaller than the single, and the sharing bag prints its own per-bar figure rather than a standard one. At 447 kcal per 100 g the per-gram price is identical whatever the format; only the portion changes, so weigh one fun-size bar once and multiply by 4.47.
Why it stays under 100 calories
The Milky Way's trick is air. The nougat centre is whipped, so a bar that looks like a normal chocolate bar weighs just 21.5 g — half of it texture, not mass. That is how it lands at 96 while denser bars of similar length cost two or three times more.
Do not mistake light for low-sugar, though. At 62 g of sugar per 100 g, the Milky Way is one of the most sugar-dense bars on the shelf; it is under 100 calories because it is small and aerated, not because the recipe is gentle. As a portion-controlled treat, that is exactly what you want: a hard ceiling of 96, built into the wrapper.
The American Milky Way is a different bar
If a US website tells you a Milky Way is 240-plus calories, it is describing a different product. The American "Milky Way" has caramel and is essentially what the UK sells as a Mars bar; the British Milky Way is the small whipped-nougat bar with no caramel at all. Same name, different sweet — and the reason imported nutrition numbers for this bar are worthless. Log the UK label: 96 per bar.
How a Milky Way compares
| Bar | Portion | Calories |
|---|---|---|
| Milky Way | 1 bar (21.5 g) | 96 |
| Freddo | 1 bar | 96 |
| Maltesers | 1 malteser | ~10 |
| Twirl | twin pack | 228 |
| Bounty | twin pack | 278 |
Verdict: for the smallest fixed chocolate hit, it is a two-way tie between Milky Way and Freddo — and the Milky Way is the more generous bar for the same 96. Among twin packs it beats both rivals: a Bounty twin costs a whole extra Freddo more than a Milky Way twin. Maltesers only win if you can genuinely stop at a handful; a Milky Way stops for you. Bigger bars like Snickers play in a different league entirely.
Most popular Milky Way products in the United Kingdom
Ranked by how widely each product appears among foods sold in the United Kingdom, from the BodyPal food database of over 3.3 million products. Calories are the figures printed on each label. The bar itself is the lightest thing the brand makes.
| Product | Calories (per 100 g) |
|---|---|
| Milky Way bar | 447 kcal |
| Milky Way Fun Size Bar | 471 kcal |
| Milky Way Minis | 443 kcal |
| Milky Way Crispy Rolls | 510 kcal |
| Milky Way Magic Stars | 559 kcal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels.
Milky Way FAQs
How many calories are in a UK Milky Way bar?
96 calories per standard 21.5 g bar, or 447 kcal per 100 g. That makes it — jointly with the Freddo — the lightest of the classic UK chocolate bars per serving, and the Milky Way is the larger bar of the two.
How many calories are in a Milky Way twin pack?
192 calories for the two bars. The twin is the standard supermarket format, so it is worth treating each 96-calorie bar as its own portion — eaten back to back, the wrapper quietly doubles the treat.
How much sugar is in a Milky Way?
13.3 g per bar, from 62 g of sugar per 100 g — one of the most sugar-dense recipes on the shelf. Against the NHS guideline of 30 g of free sugars a day, one small bar uses over 40%. The bar is light because it is small and aerated, not low in sugar.
Is the US Milky Way the same as the UK one?
No. The American Milky Way contains caramel and matches what Britain calls a Mars bar; the UK Milky Way is a smaller whipped-nougat bar without caramel. US calorie figures do not apply here — the UK bar is 96 calories at 21.5 g.
Is a Milky Way the lowest-calorie chocolate bar?
Joint lowest among the classics: 96 calories, level with a Freddo. The practical difference is size — the Milky Way weighs more, so per bite it is the better deal. Individual Maltesers are about 10 each, but they lack the built-in stopping point of a wrapped bar.
Is a Milky Way OK as an everyday treat?
At 96 calories it is one of the easiest chocolate bars to fit into a day — under 5% of a 2,000 kcal reference intake. The watch-item is sugar: 13.3 g is a sizeable bite of the NHS 30 g free-sugars guideline, so it works best as the day's one sweet thing, not one of several.
How many kilojoules are in a Milky Way?
402 kJ per 21.5 g bar, which is the 96 kcal figure in the units used on some labels — and 1,870 kJ per 100 g. If a wrapper quotes kJ and looks alarming, divide by 4.184 to get back to calories.
Milky Way or Freddo — which is the better pick?
Calorie-wise they are identical at 96, so the Milky Way wins on value: it is the bigger bar for the same count. Pick the Freddo only if you prefer solid chocolate to whipped nougat — the numbers give you no reason to.
Similar foods
- Rich tea biscuit — 38 kcal per biscuit
- Crunchie — 186 kcal per bar
- Rice Krispies Square — 119 kcal a bar
- Popcorn — 141 kcal per 30 g bag
- Oreo — 52 kcal per biscuit
- Wagon Wheel — 160 kcal per wheel
Log the treat, keep the day
Snap the wrapper and BodyPal logs the Milky Way in a second — the 96 calories, the sugar, and how it fits the rest of your day.
