Calories in a Bacon Sandwich: The Salt Is the Surprise
Two grilled back rashers between two slices of white bread come to 314 kcal, or 388 kcal once you butter it. That is a perfectly ordinary lunch. The calories in a bacon sandwich are not the number worth knowing about, though: the salt in one is.
You'd need to walk about 78 minutes to burn the 388 calories in two rashers, two slices and butter.
How long does it take to burn off a bacon sandwich?
Two rashers, two slices and butter is 388 kcal. Enter your weight to see how long it takes you to burn that off:
lb
| Activity | Time to burn 388 kcal |
|---|---|
| Walking, brisk | 1 hr 18 min |
| Cycling, moderate | 48 min |
| Swimming, moderate | 55 min |
| Jogging | 46 min |
| Weight training, moderate | 1 hr 26 min |
Times are for a 154 lb (11 st) adult at a steady pace; change the weight to see yours. BodyPal works this out from your steps automatically.
On this page
- Bacon nutrition at a glance
- The butty maths
- The salt is the real story
- With butter, and without
- Three rashers instead of two
- Grilled or fried
- Sauce
- How does a bacon sandwich compare?
- Two things people get wrong
- Most popular bacon sandwich brands
- FAQ
Bacon nutrition at a glance
| Nutrient | Per 100 g | Per rasher (25 g) | %RI* per rasher |
|---|---|---|---|
| Energy | 287 kcal / 1,201 kJ | 72 kcal / 301 kJ | 4% |
| Protein | 23.2 g | 5.8 g | 12% |
| Carbohydrate | 0 g | 0 g | 0% |
| of which sugars | 0 g | 0 g | 0% |
| Fat | 21.6 g | 5.4 g | 8% |
| Fibre | 0 g | 0 g | — |
| Salt | 3.5 g | 0.88 g | 15% |
*%RI = percentage of the reference intake for an average adult (2,000 kcal; 70 g fat, 260 g carbohydrate, 90 g sugars, 50 g protein, 6 g salt). Figures are for back bacon, grilled, which is what a British bacon sandwich is made of.
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 →
A rasher is a small object with a big salt line. Everything else on that table is unremarkable, which is exactly why the wrong number gets all the attention.
The butty maths
A bacon sandwich is three ingredients and three sums. Here is every build, with grilled back bacon at 72 kcal a rasher, a medium slice of white bread at 85 kcal for 36 g, and butter at 74 kcal for a 10 g scrape.
| Build | Calories |
|---|---|
| 2 rashers + 2 slices, no butter | 314 kcal |
| 2 rashers + 2 slices + butter | 388 kcal |
| 3 rashers + 2 slices + butter | 460 kcal |
| 2 rashers alone | 144 kcal |
The buttered version is 19% of a 2,000 kcal day. Put another way, a bacon butty costs about what a shop-bought sandwich costs, and you know precisely what went into it.
Note where the calories actually live. The bacon is 144 of the 388. The bread and the butter are 244.
The salt is the real story
At 3.5 g of salt per 100 g, two rashers carry about 1.75 g. The two slices of bread add roughly 0.7 g. That is 2.5 g of salt in one sandwich, around 40% of the 6 g an adult is advised to stay under in a whole day.
Nobody expects that from a breakfast. The NHS caps adults at 6 g of salt a day, and a bacon sandwich spends nearly half of it before you have had lunch.
Our position: this is not a reason to skip the sandwich, and it is not a calorie problem at all. It is a frequency question. A Saturday bacon butty is a Saturday bacon butty. Five weekday ones, plus salted butter and a sauce on top, is a different conversation, and unsalted butter is the easiest thing to change first.
Everything below changes one variable at a time, so you can find the version you actually make.
With butter, and without: 388 or 314 kcal
A 10 g scrape of butter adds 74 kcal, taking the sandwich from 314 to 388 kcal. That single spread is 19% of the finished total, and more than half a rasher's worth.
Butter is the line that goes missing in food diaries, because it disappears into hot toast and nobody weighs it. If you want to cut something here without touching the bacon, this is the cheapest 74 calories on the plate.
Three rashers instead of two: 460 kcal
Add a third rasher to the buttered sandwich and you are at 460 kcal, with 17.4 g of protein from the bacon rather than 11.6 g.
That is the version that turns a sandwich into a meal that holds until dinner. It also pushes the bacon's own salt to about 2.6 g before the bread joins in, so the third rasher costs more in salt than it does in calories.
Grilled or fried
Every figure on this page is for bacon grilled, with the fat allowed to drip away. Fried bacon takes on whatever it was cooked in, so oil, lard or butter in the pan lands in the sandwich, and it lands unmeasured.
Grilling is not a health decision so much as a bookkeeping one. It is the only method where the number on the label is still the number on your plate.
One thing this page does not cover: streaky bacon. A British bacon sandwich is back bacon, and streaky is a different cut with a different fat figure entirely, so do not borrow these numbers for it.
Sauce
Red or brown, a squeeze adds a little. The butter added considerably more before either bottle came out.
Sauce is worth logging if you pour rather than squeeze, but it is never the reason a bacon sandwich came in higher than you expected. That was the butter, or the third rasher.
How does a bacon sandwich compare?
| Breakfast | Portion | Calories |
|---|---|---|
| Bacon sandwich, buttered | 2 rashers, 2 slices, 10 g butter | 388 kcal |
| Bacon sandwich, no butter | 2 rashers, 2 slices | 314 kcal |
| Small fried full English | small fry-up | 515 kcal |
| Two crumpets, plain | 2 crumpets | 190 kcal |
| White bread, plain | 2 medium slices, 72 g | 170 kcal |
The verdict: for protein nothing on this table touches the bacon sandwich, at 11.6 g from the rashers alone, and at 388 kcal it lands 127 below a small fried breakfast for a fraction of the effort. For a calorie deficit the crumpets are half the price and the obvious pick, but do not switch for the salt, because our crumpet page puts two of those in much the same territory. That is less a bacon problem than a British breakfast problem.
Bread carries the sandwich in more ways than one. The NHS puts starchy foods at the base of a balanced plate, and two slices are 170 of these 388 calories.
Two things people get wrong
"The bacon is what makes it heavy." Two rashers are 144 kcal of a 388 kcal sandwich. The bread and butter are the other 244, so 63% of a buttered bacon butty is not bacon at all. Cutting to one rasher saves 72 calories; skipping the butter saves 74.
"Grilling makes it a light breakfast." Grilling keeps the count honest, which is not the same thing. A grilled bacon butty is still 388 kcal and about 2.5 g of salt, and the grill does nothing whatsoever about the second figure.
Most popular bacon sandwich 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. Meal-deal takes on the bacon sandwich; the plain butty you make at home is the recipe in the sections above.
| Product | Calories (per 100 g) |
|---|---|
| Urban Eat Chicken & Bacon Sandwich | 255 kcal |
| Legends Egg & Bacon Sandwich | 254 kcal |
| Ginsters Chicken and Bacon Sandwich | 218 kcal |
Brand popularity: BodyPal food database. Nutrition: manufacturer labels.
Frequently asked questions
How many calories are in a bacon sandwich?
A bacon sandwich is 314 kcal with two grilled back rashers and two slices of white bread, or 388 kcal with a 10 g scrape of butter. The bacon accounts for 144 of that, at 72 kcal a rasher. Three rashers with butter comes to 460 kcal.
How many calories are in a bacon butty?
A bacon butty is 388 kcal made the usual way: two grilled rashers, two slices of white bread and butter. Without the butter it is 314 kcal. Butty, sarnie or sandwich, the maths is the same, and the butter is what separates the two figures.
How many calories are in a bacon sandwich with butter?
With butter it is 388 kcal, against 314 kcal without. A 10 g scrape adds 74 calories, which is more than a whole rasher of grilled back bacon at 72 kcal. It is also the easiest thing on the sandwich to cut without missing it.
How many calories are in a bacon roll?
Two grilled rashers are 144 kcal, so a bacon roll is 144 plus whatever the roll itself weighs: a white roll is usually heavier than two slices put together, so expect the roll version to land a little above the 314 figure; the roll bag carries the exact number. Rolls vary far more than sliced bread does, so check the pack. On sliced white bread the same two rashers make a 314 kcal sandwich.
How many calories are in one rasher of bacon?
One grilled back rasher of about 25 g is 72 kcal, from 287 kcal per 100 g. It brings 5.8 g of protein, 5.4 g of fat and 0.88 g of salt. Rashers vary in size, so weigh a couple once and you will know your own pack.
Is a bacon sandwich healthy?
At 388 kcal it is a normal lunch rather than an indulgence, and it brings 11.6 g of protein from the bacon. The weak spot is salt: about 2.5 g in one sandwich, roughly 40% of the 6 g an adult is advised to stay under in a day.
How much salt is in a bacon sandwich?
About 2.5 g. Two rashers carry roughly 1.75 g at 3.5 g per 100 g, and two slices of white bread add around 0.7 g. That is close to 40% of an adult's 6 g daily maximum, and salted butter or a sauce pushes it higher again.
Does grilling bacon save calories compared with frying?
Grilled back bacon is 287 kcal per 100 g and 72 kcal a rasher, which is what every figure here uses. Frying adds whatever fat is in the pan, and that goes uncounted unless you measure the oil. Grilling lets the fat drip away instead.
Similar foods
- Burger — 288 kcal per 100 g
- Greggs Chicken Bake — 420 kcal per bake
- Cheese on toast — 336 kcal for two slices
- Pizza — 340 kcal per slice
- Cheese and onion pasty — 436 kcal a Greggs bake
- Quarter Pounder — 263 kcal per 100 g with cheese
Count it without the maths
BodyPal logs the rashers, the bread and the butter from one photo, so the scrape you did not weigh still gets counted.
