How much protein is in cheddar?

About 25 g per 100 g, or 7.5 g in a 30 g portion.

Calories in cheddar

A 30 g piece of cheddar, about the size of a matchbox, has about 125 kcal and 7.5 g of protein.

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

Cheddar calories by portion

Portion	Calories	Protein	Carbs	Fat
Portion (30 g, matchbox size)	125 kcal	7.5 g	0 g	10.5 g
Slice (20 g)	83 kcal	5 g	0 g	7 g
Grated, 40 g handful	166 kcal	10 g	0 g	14 g
Reduced-fat cheddar, 30 g	90–95 kcal

Cheddar nutrition per 100 g

Energy	416 kcal (1741 kJ)
Protein	25 g
Carbohydrate	0.1 g
of which sugars	0.1 g
Fat	34.9 g
Fibre	0 g

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

Cheese portions

Cheese is easy to over-pour when grated. Weighing it once shows what a handful really is. Strong cheddar gives more flavour, so you can use less.

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 30 g of cheddar?: About 125 kcal.
How much protein is in cheddar?: About 25 g per 100 g, or 7.5 g in a 30 g portion.