One medium boiled potato (about 136 g) has roughly 118 calories; per 100 g, the count averages about 87 calories.
Calories Per 100 g
Typical Serving
Carb Load
Plain Boiled
- Water + potato only
- Keep skins for more fiber
- Cool/rewarm to add resistant starch
Lowest Calories
With Butter
- +1 tbsp adds ~102 kcal
- Rich taste; watch portions
- Salt to taste after cooking
Indulgent
With Olive Oil
- +1 tsp adds ~40 kcal
- Toss with herbs
- Great for salads
Light Drizzle
Calories In A Boiled Potato (By Size And Portion)
Calories change with weight and with what you add after cooking. Plain, unsalted pieces in water keep the count steady and predictable. The figures below come from lab-based datasets and align with common home servings.
Quick Reference: Plain Boiled Pieces
Use this early table as your cheat sheet. It covers the most asked-about portions and keeps the columns simple for fast scanning.
| Serving | Approx. Weight | Calories |
|---|---|---|
| Per 100 g (plain) | 100 g | ~87 kcal |
| 1/2 cup diced | ~78 g | ~68 kcal |
| 1 medium potato | ~136 g | ~118 kcal |
| 1 cup diced | ~156 g | ~136 kcal |
| Per ounce | 28 g | ~24 kcal |
Planning portions gets easier once you set your daily calorie needs. Then the numbers above slot neatly into meals or sides without guesswork.
What Counts As “Boiled” For Calorie Math
Plain means water and potato only. No oil in the pot. No butter melted over the top. Salt doesn’t change the energy count in a meaningful way, but it can raise sodium; add it after cooking if you’re watching totals.
One medium piece at 2.5 inches across lands near 136 grams after cooking. That portion averages about 118 calories with around 27 grams of carbohydrate and a couple of grams of fiber. These numbers match a standard profile used by dietitians and are consistent with lab references that pull from U.S. agriculture datasets.
Skins, Texture, And Cooling Time
Leaving the skins in the pot nudges fiber up a touch and makes the pieces hold together better. Cooling cooked cubes in the fridge before serving as a salad increases resistant starch, which can change how quickly blood sugar rises. The calorie number doesn’t drop, but the meal can feel steadier.
How Size And Cut Shape The Count
Think in grams first, then translate to your plate. A cup of diced pieces weighs more than a single small tuber. That’s why a “cup” often beats a “potato” when you’re tracking precisely.
Everyday Portions You’ll See
- Side on a dinner plate: 1/2 to 1 cup, or about 70–150 grams.
- Soup or stew: Often 1 cup in total, but spread across the bowl with other items.
- Salad bowl: 1 cup cooled cubes is common when it’s the main starch.
Why Your Numbers May Drift
Water content shifts with time in the pot and with the variety. Waxy types (red, new) hold their structure and water a bit differently than fluffy russets. That can shave or add a few grams, yet your energy total will still sit close to the ranges in the table.
Nutrition Beyond Calories
Plain boiled pieces bring potassium, vitamin C, vitamin B6, and modest protein. One medium serving lands near 500 mg of potassium and about 18 mg of vitamin C. That’s one reason this tuber shows up on lists of top potassium foods in the dietetic world; see the NIH overview for context on potassium needs.
Macros At A Glance
- Carbs: Roughly 20–28 g per common serving, mostly starch.
- Fiber: Around 2–3 g per medium portion.
- Fat: Practically nil until toppings show up.
- Protein: About 2–3 g per medium piece.
How Toppings Change The Tally
This is where totals jump. Fat-based add-ins pack energy. A tablespoon of butter adds about 102 calories. A teaspoon of olive oil adds about 40 calories. Sour cream, cheese, mayo, and creamy dressings all push the number up fast.
Simple Ways To Keep Calories In Check
- Measure butter or oil before tossing with hot pieces.
- Swap half the mayo in a salad for thick yogurt or a tangy vinaigrette.
- Lean on herbs, vinegar, mustard, and scallions for punchy flavor without extra energy.
For a full nutrient breakdown that matches common home servings, see the boiled potato profile compiled from USDA data in this detailed nutrition table.
Portion Math You Can Use Tonight
Use the add-on table below to estimate the bump from popular mix-ins. Pair it with the first table and you can price out a side dish or a salad bowl in seconds.
| Topping Or Mix-In | Typical Amount | Extra Calories |
|---|---|---|
| Butter, melted | 1 tbsp | ~102 kcal |
| Olive oil | 1 tsp | ~40 kcal |
| Sour cream | 2 tbsp | ~60 kcal |
| Greek yogurt (plain) | 2 tbsp | ~25 kcal |
| Shredded cheese | 1 tbsp | ~55 kcal |
| Mayo-style dressing | 1 tbsp | ~90 kcal |
| Bacon bits | 1 tbsp | ~25–30 kcal |
| Vinaigrette | 1 tbsp | ~45–60 kcal |
Serving Ideas That Stay Light
Weeknight Side
Toss hot cubes with a teaspoon of olive oil, lemon zest, and chopped parsley. That adds flavor with about 40 extra calories per person.
Hearty Salad Bowl
Chill cooked pieces, then fold in chopped cucumber, dill, and a spoon of thick yogurt. A squeeze of lemon and a pinch of salt finish the bowl with a fresh snap.
Brothy Add-In
Drop small cubes into chicken or vegetable broth with carrots and peas. It feels richer without heavy sauces.
Boiled Vs. Other Cooking Styles
Energy density stays modest with plain water cooking. Pan-frying and roasting bring oil to the party, which raises the total quickly. If you love crispy edges, try a light spray of oil and a hot oven, then weigh or measure the drizzle so you know the add-on.
Skin On Or Off?
Keep the skins when you can. You’ll get a touch more fiber and a bit more vitamin C. The energy number won’t swing much, but the texture and plate appeal get a lift.
Smart Shopping And Storage
Pick The Right Bag
Waxy types (red, new, yellow) hold shape in salads. Fluffy russets mash like a dream. For plain cubes, red and yellow tubers resist falling apart and reheat well the next day.
Store For Freshness
Keep them in a cool, dark place with airflow. Skip the fridge for raw tubers; cold temps can change texture and sweetness. Cooked pieces store well in a sealed container for 3–4 days.
Health Angle In A Nutshell
Plain boiled pieces fit neatly into balanced plates. They bring potassium and vitamin C with modest energy. The catch is what lands on top. Butter and creamy dressings taste great, but they raise the tally fast. A light hand keeps the side firmly in “everyday” territory.
Potassium Callout
Many folks fall short on this mineral. Tubers help close that gap, especially when eaten with the skins. For reference, the NIH lists potatoes among top sources in U.S. diets; see the potassium fact sheet for context on daily targets and food lists.
Make The Numbers Work For You
Start with the serving size you actually plate. Add the topping bump from the second table. Round ten calories either way and you’ll be close enough for daily logging. Most of the time, the biggest swing comes from butter, oil, cheese, and dressings.
Two Real-World Builds
- Light herbed side: 1 cup cubes (~136 kcal) + 1 tsp olive oil (~40 kcal) + lemon + herbs = ~176 kcal.
- Creamy salad: 1 cup cubes (~136 kcal) + 2 tbsp Greek yogurt (~25 kcal) + dill + pickles = ~161 kcal.
FAQs You Didn’t Have To Ask
Does Salt Change Calories?
No. It adds sodium, not energy. Season after cooking if you want to watch totals closely.
Do Different Varieties Change Calories?
Energy per 100 g sits in the same neighborhood. Texture, water content, and shape hold the bigger differences that you’ll feel on the fork, not on the calorie line.
Final Tally
Plain water-cooked pieces are a low-effort, low-energy side that plays well with many plates. Keep portions around a half-cup to a cup for everyday meals. Measure fats, lean on herbs and acids, and you’ll have a budget-friendly starch that still tastes great.
Want a deeper walkthrough on balancing meals? Skim our calorie deficit guide for step-by-step planning.