Calories in Pasta Carbonara: The Cream Is the Whole Story
A shop-bought pasta carbonara runs 124 kcal per 100 g of finished plate, and a jar or tub of carbonara sauce on its own is 151. Cook it at home the British way and the same plate can pass 700. The calories in pasta carbonara turn almost entirely on one ingredient that the Roman original never contained.
You'd need to walk about 25 minutes to burn the 124 calories in 100 g of a shop-bought plate.
How long does it take to burn off pasta carbonara?
100 g of a shop-bought plate is 124 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 124 kcal |
|---|---|
| Walking, brisk | 25 min |
| Cycling, moderate | 16 min |
| Swimming, moderate | 18 min |
| Jogging | 15 min |
| Weight training, moderate | 28 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 (100 g); change it to what you actually ate. BodyPal works this out from your steps automatically.
On this page
- Quick facts
- Two different dishes with one name
- What the cream costs
- Streaky or back
- Two plates 202 calories apart
- The chilled aisle version
- Carbonara next to the other pasta standards
- Most popular carbonara brands in the United Kingdom
- Carbonara FAQs
Quick facts
Two numbers matter here and they measure different things, so the table keeps them apart. The first column is a finished carbonara from a British supermarket, averaged across 21 products. The second is carbonara sauce measured on its own, before any pasta goes near it.
| Per 100 g | Finished plate, shop-bought | Carbonara sauce only | RI%* (sauce) |
|---|---|---|---|
| Energy | 124 kcal / 519 kJ | 151 kcal / 632 kJ | 8% |
| Protein | – | 4.9 g | 10% |
| Carbohydrates | – | 3.8 g | 1% |
| – of which sugars | – | 0.8 g | 1% |
| Fat | – | 13.0 g | 19% |
| – of which saturates | – | 7.67 g | 38% |
| Fibre | – | 1.3 g | – |
| Salt | – | 0.85 g | 14% |
*Share of an average adult's daily reference intake at 2,000 kcal, per 100 g of sauce.
The finished retail dish is not in the government tables at all, but British own-label chilled carbonaras cluster tightly on their own labels: roughly 140 kcal per 100 g with 6.7 g of protein, 6.0 g of fat, 2.8 g of saturates and 0.5 g of salt. What can be said with confidence is that the sauce carries 38 per cent of a day's saturated fat in 100 g, and that a jar holds rather more than 100 g.
Two different dishes with one name
Carbonara as it is cooked in Rome contains four things: pasta, cured pork, egg yolk and hard cheese. There is no cream in it. The sauce is an emulsion, made by beating egg into hot pasta water and cheese, and the silkiness people attribute to dairy fat actually comes from the yolk.
Carbonara as it is cooked in most British kitchens, and as it is sold in most British jars, contains cream. That single substitution is where the arithmetic diverges, and it is why two people can log "carbonara" and be describing plates that differ by hundreds of calories.
This matters more than the usual restaurant-versus-home caveat, because it is not a question of portion generosity. It is a question of which recipe you are actually eating. Before you log anything, decide which of the two dishes was on the table.
What the cream costs
| Per 100 g | Calories | Fat | Saturates |
|---|---|---|---|
| Egg, whole, raw | 131 kcal | 9.0 g | 2.52 g |
| Single cream | 193 kcal | 19.1 g | 12.15 g |
| Double cream | 496 kcal | 53.7 g | 33.39 g |
Whole egg is 131 kcal per 100 g with 2.52 g of saturates. Double cream is 496 kcal with 33.39 g. Weight for weight the cream carries more than thirteen times the saturated fat, and it does the same job in the pan.
Single cream is the middle option at 193 kcal and 12.15 g of saturates, which is a genuine improvement on double without going all the way back to the original method. Fifty grams stirred into a plate is 97 calories against 248 for the same weight of double cream.
The reason the swap works so well is that neither ingredient is doing much for flavour. The flavour in carbonara comes from the cured pork and the hard cheese. Cream and egg are both there for texture, and the egg version, done properly, is the glossier of the two. You are trading nothing except the risk of scrambling it, which is solved by taking the pan off the heat.
The saturated fat line is the one worth acting on rather than the calorie line. Food labels in the UK work to a daily reference intake of 20 g of saturates, and the NHS has more on which fats to cut and which to keep. A double-cream carbonara can spend that entire figure in one bowl.
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 →
Streaky or back
Streaky bacon, grilled, is 337 kcal per 100 g. Back bacon is 287. Fifty calories per 100 g sounds like a rounding error until you notice how much bacon goes into a carbonara.
At 40 g of bacon per plate, which is two decent rashers, streaky costs 135 kcal and back costs 115. Twenty calories. That alone would not be worth writing about.
The salt is worth writing about. Streaky carries 4.2 g of salt per 100 g and back carries 3.475 g, so those same two rashers put 1.68 g or 1.39 g on the plate. Either figure is a substantial share of the 6 g a day the NHS advises, from the meat alone, before the parmesan and the sauce join in. If you have ever wondered why a carbonara leaves you thirsty, this is why.
Back bacon is the better buy on both counts, and it is also leaner in a way you can see: 21.6 g of fat per 100 g against 26.9 g, with nearly identical protein at 23.2 g and 23.8 g. Same meat, less of the rind. The bacon sandwich page runs the same comparison for a different meal.
Two plates 202 calories apart
Same pasta, same weight of bacon, same parmesan. Only the fat and the cut of bacon change.
| The British version | Amount | Calories | Saturates | Salt |
|---|---|---|---|---|
| Spaghetti, boiled | 200 g | 282 kcal | – | 0.014 g |
| Streaky bacon, grilled | 40 g | 135 kcal | 3.92 g | 1.68 g |
| Double cream | 50 g | 248 kcal | 16.70 g | – |
| Parmesan | 20 g | 83 kcal | 3.85 g | 0.33 g |
| Total | 310 g | 748 kcal | 24.47 g | 2.02 g |
| The Roman version | Amount | Calories | Saturates | Salt |
|---|---|---|---|---|
| Spaghetti, boiled | 200 g | 282 kcal | – | 0.014 g |
| Back bacon, grilled | 40 g | 115 kcal | 3.24 g | 1.39 g |
| Beaten egg | 50 g | 66 kcal | 1.26 g | 0.19 g |
| Parmesan | 20 g | 83 kcal | 3.85 g | 0.33 g |
| Total | 310 g | 546 kcal | 8.35 g | 1.73 g |
Two hundred and two calories separate the plates, and they weigh the same. The saturated fat falls from 24.47 g to 8.35 g, which is the difference between spending 122 per cent of the daily reference intake and spending 42 per cent of it.
Keep the double cream but move to back bacon and you save 20 calories. Keep the streaky bacon but move to egg and you save 182. If you are only going to change one thing, change the fat.
There is a middle plate too. Streaky bacon with single cream instead of double comes to 597 kcal with 13.85 g of saturates, which is most of the saving for none of the technique. Adjust the amounts to your own pan; the per-100 g figures above will scale to whatever you actually cook.
The chilled aisle version
The averaged figure across British ready-meal carbonaras is 124 kcal per 100 g, and that is genuinely lower than a home-cooked plate made with double cream. It is not because the manufacturers are being virtuous. It is because the tray is mostly pasta.
| Tray weight | Calories |
|---|---|
| 300 g | 372 kcal |
| 350 g | 434 kcal |
| 400 g | 496 kcal |
| 450 g | 558 kcal |
British single-serve chilled carbonara packs are almost all 400 g, so that is the row to read first.
So the honest comparison runs like this. A ready meal is lighter per gram and comes in a fixed portion, which is a real advantage if portion control is the thing you struggle with. A home-cooked carbonara made with egg is lighter still and far better on saturates, but only if you actually cook it that way. A home-cooked carbonara made with double cream is the heaviest of the three by a distance.
Check the salt on the sleeve rather than assuming. Sauce measured on its own averages 0.85 g per 100 g, and a tray that holds 400 g of finished dish is carrying a meaningful share of the day before the bacon is counted.
Carbonara next to the other pasta standards
| Per 100 g | Calories | Protein | Fat | Salt |
|---|---|---|---|---|
| Carbonara, shop-bought, finished plate | 124 kcal | – | – | – |
| Spaghetti, boiled, no sauce | 141 kcal | 4.4 g | 0.6 g | 0.007 g |
| Spaghetti bolognese, homemade | 151 kcal | 8.1 g | 6.1 g | 0.23 g |
| Carbonara sauce only | 151 kcal | 4.9 g | 13.0 g | 0.85 g |
| Lasagne | 180 kcal | – | – | – |
Bolognese and carbonara sauce land on the same calorie figure and are not remotely the same food. Bolognese brings 8.1 g of protein and 6.1 g of fat per 100 g; carbonara sauce brings 4.9 g of protein and 13.0 g of fat, most of it dairy. On protein per calorie the meat sauce wins comfortably, and it carries roughly a quarter of the salt.
Our position: bolognese is the better default and carbonara is the better treat, and the treat is worth improving rather than avoiding. Use eggs and hard cheese instead of cream, choose back bacon over streaky, and you get the dish you wanted at close to the calorie cost of a bolognese. That is a rare trade in cooking where the traditional method and the lighter method are the same method.
If you want the milk route instead of either, be aware it will not emulsify the same way. This is one dish where the shortcut does not exist.
Most popular carbonara brands 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.
| Product | Calories (per 100 g) |
|---|---|
| Tesco Finest Spaghetti Carbonara | 166 kcal |
| Morrisons The Best Pancetta Carbonara | 159 kcal |
| Waitrose Spaghetti Carbonara | 152 kcal |
| Sainsbury’s Spaghetti Carbonara | 141 kcal |
| M&S Spaghetti Carbonara | 139 kcal |
| Aldi Spaghetti Carbonara | 138 kcal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels.
Carbonara FAQs
How many calories are in a carbonara?
124 kcal per 100 g for a shop-bought finished plate, so a 400 g tray is about 496 kcal. Cooked at home with 200 g of spaghetti, streaky bacon, double cream and parmesan, the same-sized plate works out at 748 kcal. The recipe matters far more than the brand.
How many calories in carbonara without cream?
A plate built the traditional way with beaten egg instead of cream comes to 546 kcal for 200 g of spaghetti, 40 g of back bacon, 50 g of egg and 20 g of parmesan. The cream version of the same plate is 748 kcal. Whole egg is 131 kcal per 100 g against 496 for double cream.
How many calories in spaghetti carbonara?
Start from the pasta: boiled spaghetti is 141 kcal per 100 g, so a 200 g serving is 282 kcal before anything is added. Carbonara sauce adds 151 kcal per 100 g of sauce. A full home-cooked plate lands between roughly 546 and 748 kcal, the low end for egg and the high end for double cream.
Is carbonara healthy?
The line to watch is saturated fat, not calories. Carbonara sauce carries 7.67 g of saturates per 100 g, which is 38 per cent of the daily reference intake, and a cream-based plate can reach 24 g in one sitting. Made with egg and back bacon the same dish drops to about 8 g of saturates, which changes it from an occasional meal to an ordinary one.
Carbonara or bolognese?
Bolognese, on the numbers. Homemade bolognese is 151 kcal per 100 g with 8.1 g of protein, 6.1 g of fat and 0.23 g of salt. Carbonara sauce matches it on calories at 151 but carries 13.0 g of fat, 4.9 g of protein and 0.85 g of salt per 100 g. Carbonara closes most of that gap when you make it without cream.
How many calories in a creamy carbonara?
Around 748 kcal for a 310 g plate made with double cream, streaky bacon and parmesan. Switching to single cream brings it to 597 kcal, and switching to egg brings it to 546. Double cream is 496 kcal per 100 g with 33.39 g of saturates, which is the single heaviest ingredient in the dish.
How much protein is in carbonara?
Carbonara sauce carries 4.9 g of protein per 100 g. The protein in the finished dish comes mostly from the bacon at 23.2 to 23.8 g per 100 g, the parmesan at 36.2 g and the egg at 12.6 g. A plate with 40 g of bacon, 20 g of parmesan and 50 g of egg holds roughly 23 g of protein before the pasta is counted.
How many calories in a shop-bought carbonara?
124 kcal per 100 g, averaged across 21 products on British shelves. That works out at 372 kcal for a 300 g tray and 496 kcal for a 400 g one. Ready meals come out lighter per gram than a home-cooked cream carbonara because the tray is proportionally more pasta and less sauce.
Similar foods
- Beans on toast — 338 kcal a plate
- Instant noodles — 135 kcal per 100 g made up
- Cottage pie — ~444 kcal a portion
- Indian takeaway — 145 kcal per 100 g chicken curry
- Chicken breast — 147 kcal per 100 g grilled
- Chicken chow mein — 588 kcal a takeaway box
Skip the recipe archaeology
Photograph the plate and BodyPal reads the pasta, the bacon and the sauce together, whichever version of carbonara ended up in the pan.
