Calories in rye bread (rye)
Calories, protein, carbohydrate and fat per 100 g and per serving, from the USDA reference database — plus what actually changes the number on your plate.
Short answer
100 g of rye bread (rye) contains 259 kcal, with 8.5 g of protein, 48.3 g of carbohydrate and 3.3 g of fat.
A typical serving — 1 slice, about 32 g — is roughly 83 kcal.
That is a fairly calorie-dense food, so portion size matters.
Nutrition facts
| Nutrient | Per 100 g | 1 slice (32 g) |
|---|---|---|
| Calories | 259 kcal | 83 kcal |
| Protein | 8.5 g | 2.7 g |
| Carbohydrates | 48.3 g | 15.5 g |
| Sugars | 3.9 g | 1.2 g |
| Fibre | 5.8 g | 1.9 g |
| Fat | 3.3 g | 1.1 g |
| Saturated fat | 0.6 g | 0.2 g |
| Cholesterol | 0 mg | 0 mg |
| Sodium | 603 mg | 193 mg |
| Potassium | 166 mg | 53 mg |
| Calcium | 73 mg | 23 mg |
| Iron | 2.8 mg | 0.9 mg |
| Vitamin C | 0.4 mg | 0.1 mg |
| Water | 37 g | 12 g |
Calories per serving
| Serving | Weight | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|---|
| 1 slice | 32 g | 83 | 2.7 g | 15.5 g | 1.1 g |
Photograph it instead of looking it up
Wellix identifies rye bread on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
Calories by weight
Use this table when you know the weight but not the serving:
| Amount | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|
| 25 g | 65 | 2.1 g | 12.1 g | 0.8 g |
| 50 g | 130 | 4.3 g | 24.2 g | 1.7 g |
| 100 g | 259 | 8.5 g | 48.3 g | 3.3 g |
| 150 g | 389 | 12.8 g | 72.5 g | 5 g |
| 200 g | 518 | 17 g | 96.6 g | 6.6 g |
| 250 g | 648 | 21.3 g | 120.8 g | 8.3 g |
| 300 g | 777 | 25.5 g | 144.9 g | 9.9 g |
Where the calories come from
Calories come from three macronutrients: protein and carbohydrate at 4 kcal per gram, fat at 9 kcal per gram. For rye bread (rye) the split is:
- Protein: 8.5 g × 4 = 34 kcal — 13% of calories
- Carbohydrates: 48.3 g × 4 = 193 kcal — 75% of calories
- Fat: 3.3 g × 9 = 30 kcal — 12% of calories
- Most of the energy in rye bread (rye) comes from carbohydrate (75% of calories).
- It provides 5.8 g of fibre per 100 g, which is a good amount.
- It is high in sodium: 603 mg per 100 g.
- For 200 kcal you can eat about 75 g.
Compare preparations
The same food, prepared differently. Cooking removes water (so calories per 100 g rise), adds fat (so they rise further), or both.
| Preparation | Calories | Protein | Carbohydrates | Fat |
|---|---|---|---|---|
| White bread (white) | 266 | 8.9 g | 49.4 g | 3.3 g |
| Whole wheat bread (whole wheat) | 252 | 12.5 g | 42.7 g | 3.5 g |
| Rye bread (rye)this page | 259 | 8.5 g | 48.3 g | 3.3 g |
| Sourdough bread (sourdough) | 272 | 10.8 g | 51.9 g | 2.4 g |
| Multigrain bread (multigrain) | 265 | 13.4 g | 43.3 g | 4.2 g |
| Pita bread (pita) | 275 | 9.1 g | 55.7 g | 1.2 g |
| Naan (naan) | 291 | 9.6 g | 50.4 g | 5.7 g |
| Bagel (plain) | 264 | 10.6 g | 52.4 g | 1.3 g |
What actually changes the number
Rye bread is 259 kcal per 100 g and a slice around 85 kcal. Dense dark rye slices can weigh 50 g or more, so weigh one once to calibrate.
How accurate are these numbers?
The values on this page are reference averages from the USDA FoodData Central database (SR Legacy release), measured on samples of rye bread as sold and prepared in the United States. Your portion will differ: produce varies by variety and ripeness, meat by cut and trim, and anything cooked by the fat and water it gained or lost.
For most foods the per-100 g figure is reliable to within about 10%. The larger uncertainty is almost always the weight of what is on your plate and the cooking fat you cannot see — the two things worth checking before you worry about the database.
How accurate are AI calorie counting apps? →
Related foods
More in Grains, rice, pasta and bread →
Frequently asked questions
How many calories are in 100 g of rye bread?
100 g of rye bread (rye) contains 259 kcal (8.5 g protein, 48.3 g carbohydrate, 3.3 g fat), according to USDA reference data.
How many calories are in a serving of rye bread?
A typical serving of rye bread — 1 slice, about 32 g — has roughly 83 kcal. Weigh your own portion once to see how it compares; serving sizes vary more than the food does.
How much protein is in rye bread?
Rye bread (rye): 8.5 g of protein per 100 g, which is moderate. Foods above about 15–20 g per 100 g, or where protein supplies a third or more of the calories, are usually considered high-protein.
What amount of rye bread equals 200 kcal?
At 259 kcal per 100 g, about 75 g of rye bread equals 200 kcal.
Can I track rye bread by taking a photo?
Yes. A photo calorie app like Wellix identifies rye bread on the plate and estimates the portion from the image. The estimate is most accurate when you confirm the weight or the count, and tell the app about anything the camera cannot see — cooking oil, butter, dressings and sauces.
Source
Nutrition data: U.S. Department of Agriculture, FoodData Central — SR Legacy, FDC ID 172684: "Bread, rye". Values are per 100 g of edible portion. Serving weights are USDA household measures or typical retail sizes; check the label where one exists. View the USDA record.
Wellix provides general nutrition information and is not medical advice. Nutrition values are reference averages and individual foods vary. Consult a qualified healthcare professional before making significant dietary changes.
Photograph it instead of looking it up
Wellix identifies rye bread on your plate, estimates the portion and logs calories, protein, carbs and fat in seconds. Free to start on iPhone and Android.
