How many calories are in a slice of bread?

A medium slice of wholemeal or white bread has about 90 to 95 kcal. Thick slices are about 115 kcal.

Is bread bad for weight loss?

No. Bread fits into a calorie deficit. Wholemeal bread with a protein topping, such as eggs or tuna, makes a filling meal.

Calories in a slice of bread

A medium slice of wholemeal bread has about 90 kcal and 4 g of protein. Figures in the tables are for wholemeal unless stated.

By the Calori team · Updated 21 October 2026 · 3 min read

Bread calories by portion

Portion	Calories	Protein	Carbs	Fat
Medium slice wholemeal (40 g)	92 kcal	4 g	14.8 g	1 g
Thick slice wholemeal (50 g)	115 kcal	5 g	18.5 g	1.3 g
2 medium slices wholemeal	184 kcal	8 g	29.6 g	2 g
Medium slice white (40 g)	95 kcal
Slice of sourdough (50 g)	120–135 kcal

Bread nutrition per 100 g

Energy	230 kcal (962 kJ)
Protein	10 g
Carbohydrate	37 g
of which sugars	3 g
Fat	2.5 g
Fibre	7 g

Typical values. Carbohydrate excludes fibre, as on UK food labels. Brands and varieties differ, so check the label where there is one.

Wholemeal vs white

Wholemeal and white bread have similar calories per slice. Wholemeal has about twice the fibre and a little more protein, so it is usually more filling.

Toast and toppings

Toasting does not change the calories. Butter does: a thin spread is about 35 kcal and a generous one 70 or more. Peanut butter adds around 95 kcal per tablespoon.

Log it without looking it up

Calori recognises foods like this from a photo and estimates the portion, so you can log a whole plate in one go. Set your daily target with our calorie calculator.

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Frequently asked questions

How many calories are in a slice of bread?: A medium slice of wholemeal or white bread has about 90 to 95 kcal. Thick slices are about 115 kcal.
Is bread bad for weight loss?: No. Bread fits into a calorie deficit. Wholemeal bread with a protein topping, such as eggs or tuna, makes a filling meal.