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Food calorie calculator guide: calories in everyday foods

Every food calorie calculator you will ever use is a database wearing an interface — the answers are only as honest as the data underneath. That is why every value in this guide comes from one place: USDA FoodData Central, the US government’s reference database. Keep this page open next to your food log.

11 min readUpdated October 2026Calorie Calculator

Every food calorie calculator you will ever use — including any food calculator built into a tracking app — is a database wearing an interface. The answers are only as honest as the data underneath, which is why every value in this guide comes from one place: USDA FoodData Central, the US government’s reference database, the same source our main calorie calculator ecosystem leans on. Below are the foods people actually ask about, in the portions people actually eat them, organised the way I organise them when I teach counting. Keep this page open next to your food log.

Key takeaways
  • Every value here comes from USDA FoodData Central — the same source our main calorie calculator ecosystem leans on.
  • The foods people actually ask about, in the portions people actually eat them — and reading the tables is the whole skill, so I teach that first.
  • I finish with the stealth table — drinks, oils and condiments — and four swaps that save real calories.

How to read these tables (read this first — it is the whole skill)

Three habits will keep these numbers true for you. First, the portion is the number: “chicken breast, 280” means the 170 g cooked breast in the row, not chicken in the abstract. Double the portion and you double the row. Second, match the state of the food: cooked rice and dry rice are different foods energetically per spoonful, because cooking adds water weight. Every grain row below says which state it describes. Third, treat every value as a good average, not a promise: one apple is not every apple, and a restaurant’s “medium fries” is a mood, not a measurement. The tables get you within a few percent; your weekly weight trend handles the rest.

Fruit and vegetables

Food and portionCalories (kcal)
Apple, 1 medium (182 g)95
Banana, 1 medium (118 g)105
Orange, 1 medium (131 g)62
Grapes, 1 cup (151 g)104
Strawberries, 1 cup halves (152 g)49
Avocado, 1 whole (150 g)240
Potato, baked, 1 medium (173 g)161
Sweet potato, baked, 1 medium (130 g)117
Sweet corn, 1 ear (90 g of kernels)86
Baby spinach, 3 cups (90 g)21
Broccoli florets, 1 cup (91 g)31
Carrots, 1 cup chopped (128 g)52

USDA FoodData Central reference values. Produce is the forgiving end of the database — even the avocado, the richest item here, earns its 240 with fibre and healthy fats alongside.

The lesson of this table is how much room produce gives you. You could eat the strawberries, the spinach, the broccoli and the carrots — four full servings — for 153 calories total, less than the cookie in the last table. When people ask me how anyone eats at a deficit without hunger, this table is the answer: volume lives here.

Proteins and dairy

Food and portionCalories (kcal)
Egg, hard-boiled, 1 large (50 g)78
Chicken breast, skinless, cooked (100 g)165
Chicken breast, skinless, cooked (6 oz, 170 g)280
Ground beef, 80% lean, cooked (100 g)250
Salmon, Atlantic, cooked (100 g)206
Tuna, canned in water, drained (100 g)128
Black beans, cooked, 1 cup (172 g)227
Lentils, cooked, 1 cup (198 g)230
Greek yogurt, plain nonfat (170 g)100
Cottage cheese, 2% milkfat (100 g)84
Cheddar cheese, 1 oz (28 g)113
Whole milk, 1 cup (244 g)149
Peanut butter, 2 tbsp (32 g)190
Almonds, 1 oz (28 g)162

USDA FoodData Central reference values. Note the two chicken rows: the database prices chicken per 100 g, but restaurants serve 6 oz — the portion, as always, is the number.

Proteins are where targets are won quietly. The spread inside one food family is the story: 100 g of chicken breast is 165 calories, 100 g of 80% ground beef is 250, and the peanut butter — technically a protein food in most people’s minds — runs 190 for two tablespoons because it is mostly fat. None of these are “bad”; they are simply priced differently, and this table is the price list.

Grains, breads and cereals

Food and portionCalories (kcal)
White rice, cooked, 1 cup (186 g)242
Brown rice, cooked, 1 cup (195 g)218
Spaghetti, cooked, 1 cup (140 g)221
Oats, dry, 1/2 cup (40 g)152
Whole-wheat bread, 1 slice (28 g)71
White bread, 1 slice (29 g)77
Bagel, plain, 1 medium (105 g)262
Quinoa, cooked, 1 cup (185 g)222
Flour tortilla, 8-inch (46 g)150
Corn tortilla, 1 (24 g)52

USDA FoodData Central reference values, cooked weights for rice, pasta and quinoa; dry weight for oats. A cooked cup of grains lands near 220–240 kcal almost regardless of type — brown rice saves you only about 24 kcal against white.

Grains are the great normalisers: rice, pasta and quinoa all price out within about 20 calories of each other per cooked cup, which makes swaps easy and arguments about “good” versus “bad” grains mostly a fibre conversation, not a calorie one. The traps in this family are size illusions — the 262-calorie bagel wearing the costume of a 71-calorie slice of bread, and the flour tortilla at 150 doing the same job as two corn tortillas at 52 each.

Fast-food staples and snacks

Food and portionCalories (kcal)
Cheeseburger, single patty, 1 sandwich303
French fries, medium order (117 g)365
Pizza, cheese, 1 slice (107 g)285
Chicken nuggets, 6 pieces (96 g)284
Burrito, bean, fast food (185 g)379
Fried chicken breast, breaded, with skin (100 g)260
Cola, 12 fl oz can140
Chocolate chip cookie, 1 medium (30 g)146
Potato chips, 1 oz (28 g)150

USDA FoodData Central generic fast-food entries; the cola figure is the standard 12 fl oz can label value. Chain recipes and portion sizes vary, so treat these as honest midpoints rather than an exact promise from any one outlet.

Nothing in this table is forbidden knowledge — it is budgeting information. A cheeseburger, medium fries and a cola come to 303 + 365 + 140 = 808 calories, which is a perfectly fine lunch inside a 2,400-calorie maintenance day and a serious problem inside a 1,600-calorie deficit day only if the other meals pretend it never happened. The fries being the biggest item on the tray surprises everyone, every time.

Using the tables against your own target

Here is the workflow I recommend. Get your daily target from the calculator. Sketch the day in round numbers first — on a 2,000-calorie target, three meals of about 600 plus two 100-calorie snacks is a workable skeleton. Then build each meal from these tables and let the real numbers replace the round ones. A sample dinner plate: a 6 oz chicken breast (280) + a cup of white rice (242) + a cup of broccoli (31) + a tablespoon of olive oil in the pan (124) = 677 calories. It is a generous plate that fits the 600-ish slot with one snack’s worth of overrun — exactly the kind of trade you can only make when the prices are printed in front of you.

And when a food is not in these tables, you now know the move: find its USDA entry (or the closest cousin — one white fish for another, one bean for another), fix the portion in grams, and write your number down. A personal list of your fifty most-eaten foods, built this way over a few weeks, beats any generic database search, because it prices your portions of your foods.

Drinks, oils and condiments: the stealth table

Food and portionCalories (kcal)
Ranch dressing, 2 tbsp (30 g)129
Olive oil, 1 tbsp (14 g)124
Orange juice, 1 cup (248 g)112
Butter, 1 tbsp (14 g)100
Mayonnaise, 1 tbsp (14 g)95
Honey, 1 tbsp (21 g)64
Maple syrup, 1 tbsp (20 g)52
Ketchup, 1 tbsp (17 g)19

USDA FoodData Central values. The condiment shelf is where careful logs go to die — a sandwich with mayo and ranch-side dressing can carry 224 calories of pure accompaniment.

I give these foods their own table because they share one trait: nobody counts them. The olive oil “for the pan,” the ranch that comes with the wings, the juice that feels like a fruit serving — each is small, and together they routinely add 300 to 400 unlogged calories to a day. Notice too that the orange juice (112) costs more than the orange (62) while filling you less: juicing removes the fibre and concentrates the sugar of several fruits into one glass. If you only ever weigh three things, weigh the items in this table.

Four swaps that save real calories

Substitutions only work when the saving is big enough to feel and the swap is painless enough to keep. These four pass both tests, priced entirely from the tables above:

  • Medium fries (365) → baked potato (161): saves 204. Same potato, same salt satisfaction, one cooking method changed.
  • Bagel + peanut butter breakfast (262 + 190 = 452) → oatmeal + banana (152 + 105 = 257): saves 195. Still warm, still filling, and the oats are the cheaper seat in the same row of the grains table.
  • Fried chicken breast, 6 oz (442) → grilled chicken breast, 6 oz (280): saves 162. The breading and skin cost more than many side dishes.
  • The daily cola (140). One can is small; the habit is not. A can a day for a year is 51,100 calories — about 14.6 lb of fat-tissue energy by the 3,500 rule. Swapping to water or an unsweetened drink is the single largest free saving on this page.
The three most under-counted foods in every log I review: cooking oil (124 calories a tablespoon, and nobody pours exactly one), peanut butter (190 for two level tablespoons — and nobody spreads level tablespoons), and granola (259 for a half cup, which is why it appears in the gaining article of this series as a secret weapon). If your totals ever feel mysteriously low, audit these three first.

Now match the foods to your number

You have the price list; get the budget. Your maintenance calories — and your lose or gain target — from your own age, sex, size and activity level.

Open the Calorie Calculator

Frequently asked questions

What is a food calorie calculator?

A food calorie calculator is a tool that looks up the energy content of foods in a reference database and adds up the foods and portions you enter. The trustworthy ones — including the tables in this guide — draw their values from USDA FoodData Central, the US government database built from laboratory analysis and standardised portions. What separates a good food calculator from a bad one is not the interface; it is whether the portions are stated in grams and whether the database entries match the food as you actually eat it, cooked or raw.

How many calories are in an egg?

A large hard-boiled egg (50 g) has 78 calories by USDA FoodData Central values. Size is the main variable: a small egg (38 g) runs closer to 59, an extra-large one (56 g) toward 87, and preparation adds on top — an egg fried in butter absorbs part of that butter’s roughly 100 calories per tablespoon. For comparison, the other breakfast staple on most plates, a medium banana, is 105 calories, and a half cup of dry oats is 152 before milk.

Why do two food calculators give different numbers for the same food?

Usually because they are pricing different things under the same name. One entry says ‘rice, 1 cup’ meaning 186 g cooked (242 calories); another means a cup of a different variety, or dry. Databases also mix laboratory-analysed values, manufacturer label values and user-submitted values of varying quality. The fix is boring and effective: always compare the gram weight and the state (raw, cooked, drained) behind the number, and prefer entries sourced from USDA FoodData Central.

Are the calorie counts in these tables exact?

They are reference averages, and honest ones — but no apple is the average apple. USDA values come from analysing samples, and real foods vary with ripeness, variety, cut and cooking. US label rules also allow packaged foods a margin around their printed values. Use these numbers the way this whole series uses them: accurate enough to plan with, while your two-to-three-week weight trend acts as the final audit. If your log says 2,000 and your weight creeps up for a month, your true average is higher — adjust the portions, not the truth.

Sources: USDA FoodData Central (all food values; generic fast-food entries for the restaurant table; cola is the standard 12 fl oz can label value). Values rounded to the nearest calorie. This article is general information, not medical advice.

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