How Many Calories Are in a Slice of Bread?
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Other tools you may find usefulA slice of bread - the basis of the Polish menu under the dietary microscope
Bread is the absolute foundation of the Polish culinary tradition and the most popular base for daily breakfasts and dinners. There are numerous dietary discussions surrounding the consumption of bread - supporters of low-carbohydrate diets accuse it of causing weight gain, while nutrition experts emphasize the importance of good quality bread as a source of complex energy and fiber. The calorie content of a slice of bread depends directly on the type of flour used and the weight of the slice itself. An average slice of wheat or rye bread weighing 25-30 grams provides from 65 to 80 kilocalories (kcal). Choosing the right bread determines whether the meal will fill us up for a long time or cause sudden hunger after several dozen minutes.
Our handy bread slice calorie calculator allows you to instantly calculate the nutritional values for various types of bread (white bread, rye bread, wholemeal bread, spelled bread, toast bread, gluten-free bread) depending on the thickness of the slice.
Light versus dark bread - differences in values and satiety index
Despite similar calorie content per 100 grams, different types of bread have a completely different effect on our body:
- Light (wheat) bread:Baked from highly purified flour (cleaned of bran and germ). It has a low satiety index, little fiber (approx. 1.5-2g/100g) and a high glycemic index (GI ≈ 70-75). It causes a rapid spike in blood glucose.
- Brown bread (wholemeal rye, whole grain):Made from wholemeal flour. It contains 3-4 times more dietary fiber (approx. 6-8g/100g), which makes it swell in the stomach and ensures satiety for many hours. It has a low glycemic index (GI ≈ 50) and is rich in B vitamins, zinc, magnesium and iron.
Table: Comparison of nutritional values in one slice (30g) of different types of bread
The table below shows the caloric value and macronutrient profile in one standard slice of bread weighing 30 grams:
| Type of bread (1 slice – 30g) | Energy value (kcal) | Carbohydrates (g) | Dietary fiber (g) | Protein (g) | Fats (g) | Glycemic Index (GI) |
|---|---|---|---|---|---|---|
| Wheat bread (Balton) | 78 kcal | 16.8 g | 0.6 g | 2.2 g | 0.4 g | 70 (tall) |
| Wholemeal rye bread | 67 kcal | 14.4 g | 2.2 g | 1.8 g | 0.5 g | 50 (low) |
| Whole grain spelled bread | 72 kcal | 15.0 g | 1.8 g | 2.7 g | 0.6 g | 55 (low) |
| Wheat toast | 85 kcal | 15.2 g | 0.5 g | 2.1 g | 1.6 g (added fat) | 75 (high) |
| Crisp bread (1 slice – 10g) | 35 kcal | 7.0 g | 0.8 g | 1.0 g | 0.3 g | 60 (medium) |
Frequently asked questions (FAQ)
How many calories are in one slice of whole wheat rye bread?
One standard slice of real wholemeal rye bread weighing 30 grams provides approximately 65-70 kilocalories (kcal).
How much does one slice of sliced bread weigh?
An average slice of bread machine-cut from a loaf weighs between 25 and 32 grams. Toast bread is lighter - one slice usually weighs 20-22 grams.
Is crispbread better on a weight loss diet?
Crispy bread has fewer calories in one slice (approx. 35 kcal) only because it is very light (weighs 8-10g). However, per 100g, crispbread has more calories (approx. 360 kcal) than regular bread (approx. 250 kcal). Moreover, it satisfies less and has a higher glycemic index.
What is graham bread and what are its benefits?
Graham bread is baked from graham wheat flour (type 1850), which means it contains partially refined wheat grains. It is a perfect compromise for people who do not like heavy rye bread, but want to eat healthier bread with a lot of fiber and low GI (approx. 50).
Does yeast bread differ in calories from sourdough bread?
The difference in calories is negligible. However, rye sourdough bread is healthier for the digestive system - lactic acid produced during fermentation neutralizes phytic acid (which blocks the absorption of minerals) and lowers the glycemic index of the finished bread.