How many calories are in a jacket potato?

A medium jacket potato of about 200 g has around 185 kcal before toppings.

Are potatoes fattening?

No. Plain potatoes are filling for their calories. It is frying, roasting in lots of oil and adding butter or cheese that makes potato dishes high in calories.

Calories in a potato

A plain medium jacket potato has about 185 kcal. Potatoes themselves are not high in calories; the butter, oil and toppings are.

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

Potato calories by portion

Portion	Calories	Protein	Carbs	Fat
Small jacket potato, baked (150 g)	140 kcal	3.8 g	28.5 g	0.2 g
Medium jacket potato, baked (200 g)	186 kcal	5 g	38 g	0.2 g
Large jacket potato, baked (300 g)	279 kcal	7.5 g	57 g	0.3 g
Boiled new potatoes (150 g)	110–125 kcal
Roast potatoes, 3 medium	250–350 kcal
Oven chips (150 g)	240 kcal

Potato nutrition per 100 g

Energy	93 kcal (389 kJ)
Protein	2.5 g
Carbohydrate	19 g
of which sugars	1.2 g
Fat	0.1 g
Fibre	2.2 g

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

How cooking changes the calories

Boiled and baked potatoes have about 75 to 95 kcal per 100 g. Mashed with butter and milk, that rises to around 100 to 130. Roast potatoes absorb oil and are often 140 to 160 per 100 g, and chip shop chips 190 to 240.

Jacket potato toppings

A tablespoon of butter adds about 100 kcal, 40 g of grated cheddar about 165, and half a tin of beans about 160. Tuna with light mayo or cottage cheese are lower calorie, higher protein choices.

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.

More calorie counts

Banana, Egg, Chicken breast, Avocado, Apple, Sweet potato, Rice, Porridge oats, Strawberries, Kiwi, Orange, Onion, Carrot, Cucumber, Broccoli, Salmon, Greek yoghurt, Milk, Bread, Pasta, Peanut butter, Almonds, Sugar, Guinness, Greggs sausage roll, Blueberries, Grapes, Pear, Tomato, Mango, Pineapple, Watermelon, Chicken thigh, Beef mince, Cod, Tinned tuna, Prawns, Cottage cheese, Cheddar, Butter, Olive oil, Hummus, Crumpet, Bagel, Tortilla wrap, Baked beans, Mushrooms, Spinach, Peas, Lentils, Chickpeas, Tofu, Dark chocolate, Crisps, Popcorn, or see all calorie counts.

Frequently asked questions

How many calories are in a jacket potato?: A medium jacket potato of about 200 g has around 185 kcal before toppings.
Are potatoes fattening?: No. Plain potatoes are filling for their calories. It is frying, roasting in lots of oil and adding butter or cheese that makes potato dishes high in calories.