How Many Calories Are In One Potato? | Quick Facts

Potatoes show different calorie counts based on size, variety, and cooking method. Water loss during baking raises calorie density per gram, while boiling keeps more water in the flesh. The number you care about comes down to two things: how big the potato is and how you cook it.

Potato Calories By Preparation

Here’s a quick table for common ways to cook potatoes. Values use standard lab entries and show calories per 100 grams so you can compare apples to apples.

Preparation	Calories (per 100 g)	Notes
Raw, flesh and skin	58 kcal	Foundation Food entry; water content is high.
Baked, with skin	93 kcal	Higher due to moisture loss.
Boiled, in skin, flesh without salt	87 kcal	Close to baked on a per-weight basis.

Serving size shifts the picture fast. A small potato weighs around 130–140 grams, a medium lands near 170 grams, and a large often pushes past 280 grams. Once you weigh the spud, the math is simple: grams times calories per gram from the table above; snacks fit better once you set your daily calorie needs.

Calories In One Potato: Sizes And Cooking Styles

Let’s put typical potatoes on the scale. These numbers reflect plain potatoes with no toppings. They’re handy whether you log macros or just want a clear, steady reference.

Small baked potato (about 138 g): roughly 128 calories. Medium baked potato (about 173 g): about 161 calories. Large baked potato (about 299 g): about 278 calories. Boiled or microwaved potatoes of the same size sit in the same neighborhood per 100 grams.

For accuracy, match the style: baked uses the baked per-100-gram figure, boiled uses the boiled figure. If you switch styles often, using a scale once or twice helps you set an anchor in your head so everyday estimates stay close. The baked entry in USDA FoodData Central lists 93 kcal per 100 g, while the raw entry shows 58 kcal per 100 g for a plain potato with skin.

What Changes The Number

Moisture And Density

Baking drives off more water than boiling. Less water per bite means more calories per bite, even though the potato started at the same raw weight. That’s why a baked potato shows a higher per-100-gram count than a raw potato.

Skin On Or Off

Skin adds a little fiber and a tiny bump in minerals, but calories barely move. The big swing comes from how much water leaves the flesh during cooking, not the skin itself.

Salt, Stock, And Oil

Salt alone barely nudges calories. Oil changes everything. A drizzle on wedges or a pan-fry soak can add triple-digit calories quickly. If you mash with butter or cream, count those add-ins separately.

How To Estimate Without A Scale

Use size cues. A potato smaller than your fist is likely in the “small” range. A fist-sized potato is usually “medium.” A potato that fills your palm and looks hefty is “large.” Once you know the rough weight, multiply by the per-100-gram figure for your cooking style and you’re set.

Another trick is volume. A packed cup of cooked, diced potatoes is about 150 grams. If those cubes are boiled, that’s near 130 calories. If they’re baked or dry-roasted, it nudges higher.

Nutrition Beyond Calories

Per 100 grams cooked, potatoes bring potassium, vitamin C, and a modest amount of B6, with very little fat. That’s why a plain baked potato fits into many meal styles. The add-ins decide where the final tally lands.

Fiber And Satiety

Leaving the skin on slightly raises fiber. Pair that with protein—beans, yogurt, eggs, or lean meat—and the plate tends to feel satisfying with fewer total calories. Simple swap: trade butter for salsa or Greek yogurt to keep flavor high while calories stay low.

Calorie Add-Ins You Might Forget

Toppings and cooking fats move the needle far more than the potato itself. Butter, oil, cheese, sour cream, bacon bits, and creamy dressings can double the total in a blink.

Add-In	Typical Amount	Extra Calories
Butter	1 tbsp (14 g)	~102 kcal
Olive oil	1 tbsp (14 g)	~119 kcal
Sour cream	2 tbsp (30 g)	~59 kcal
Cheddar cheese	1 oz (28 g)	~113 kcal
Bacon bits	1 tbsp (7 g)	~25–30 kcal

Smart Ways To Build A Potato

Keep It Lean

Roast wedges with a spray of oil instead of a pour. Toss with paprika, garlic, and pepper. Add a spoon of salsa, chopped scallions, or a hit of lemon. You’ll keep texture and flavor without piling on fat.

Boost Protein

Top a baked potato with cottage cheese, Greek yogurt, or a scoop of chili made with beans and lean beef. These add staying power with fewer calories than a butter-heavy mash.

Make It A Meal

Pair potatoes with a palm-sized protein and a heap of non-starchy veg. A typical plate: 1 medium baked potato, a fillet of fish or a chicken thigh, and a big salad. The balance keeps energy steady and keeps you full.

Method Notes And Sources

The calorie values used here reflect standard entries for white potatoes. Per-100-gram figures come from lab-based records commonly cited by dietitians. For baked potatoes, one medium (173 g) comes out near 161 calories. Raw entries sit near 58 calories per 100 grams. Boiled entries come in around the high-80s per 100 grams. You can also look up a fresh entry directly in the same database for raw potatoes.

If you want to verify a specific variety or serving, check the federal database entries for baked potatoes and raw potatoes, or scan a nutrition calculator that pulls the same records. For broader diet planning, see a gentle primer on the calorie deficit guide.

Bottom Line

Ask two questions and you’ll nail it: how big is the potato, and how was it cooked? With those answers, you can peg the calories within a tight range and log your meal with confidence.