Calories in butter

A usual serving, thin layer on a slice (10 g), has about 70 kcal; 100 g ≈ 717 kcal.

Nutrition facts

Nutrition facts
Serving kcal Protein Fat Carbs Fibre
100 g 717 0.8 g 81 g 0.1 g 0 g
Thin layer on a slice 10 g 72 0.1 g 8.1 g 0 g 0 g

Source: fdc.nal.usda.gov · Confidence: high · Updated:

Calories per serving

Calories per serving
Serving kcal Protein Fat Carbs
Thin layer on a slice 10 g 72 0.1 g 8.1 g 0 g
1 tablespoon 15 g 108 0.1 g 12 g 0 g
Slice of bread with butter 50 g 178 3.7 g 9.3 g 20 g

How it fits into a day

A thin layer of butter on a slice, about 10 g, has about 70 kcal. Butter is over 80 % fat, which makes it one of the most calorie-dense foods: about 717 kcal per 100 g. Spread by eye, the layer is often twice as thick. Almost all of the calories come from fat.

A usual serving (thin layer on a slice) is about 4% of a 2,000 kcal day. How much do you need a day? Work it out in the calorie calculator.

Lighter options

  • Take the butter out of the fridge early: soft butter spreads thinner.
  • A slice of bread with butter and jam is about 230 kcal.

Frequently asked questions

How many calories are in butter on a slice of bread?

About 70 kcal in 10 g, with 0.1 g protein and 8.1 g fat.

How many calories are in 100 g of butter?

About 717 kcal per 100 g: 0.8 g protein, 81 g fat and 0.1 g carbs.

How many calories are in a tablespoon of butter?

A tablespoon of about 15 g has about 110 kcal and 12 g fat.

Full table: Dairy