Use the reference table for a quick lookup or enter any amount in the converter. Values are estimates based on about 717 calories per 100g of butter; the number on your package is the best source for a specific brand.

A knob of butter is a guess. The calories aren't.

Butter runs about 102 calories a tablespoon, so eyeballing a pat by 5g costs you 36. Snap the plate instead and let an AI calorie tracker estimate the butter, the toast and the rest in one shot.

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Butter serving and calorie converter

Enter the butter amount you used and choose a unit. The converter shows its estimated weight, calories and tablespoons instantly.

Convert a butter serving

102calories
14.2gbutter weight
1 tbsptablespoons

Estimate uses 7.17 calories per gram. Package labels and butter types can vary slightly.

Butter calories by serving size

This consolidated table covers the serving terms most recipes, restaurant menus and calorie trackers use.

Serving Weight Calories Total Fat Saturated Fat
1 pat / chip (restaurant portion) 5g 36 kcal 4g 2.5g
1 teaspoon 4.7g (⅓ tbsp) 34 kcal 3.8g 2.4g
1 tablespoon 14.2g 102 kcal 11.5g 7.3g
2 tablespoons 28.4g 204 kcal 23g 14.6g
¼ stick (2 tbsp) 28.4g 204 kcal 23g 14.6g
½ stick (4 tbsp) 56.7g 405 kcal 45.5g 28.9g
1 US stick (8 tbsp) 113.4g / 4 oz 810 kcal 92g 58g
100g 100g 717 kcal 81g 51g
Stick sizes are regional: A US stick is 4 oz / 113g / 8 tablespoons. Butter is often sold in 250g blocks outside the US; that amount contains about 1,793 calories. Check the package weight before logging it.

Butter calories by weight in grams

If you weigh butter on a kitchen scale, this is the table you want. Every figure below uses the USDA value for salted butter — 717 kcal per 100g, which works out to 7.17 calories per gram.

Weight Calories Total Fat Saturated Fat Common equivalent
1g7 kcal0.8g0.5gA scrape
3g22 kcal2.4g1.5gThin spread on one cracker
4g29 kcal3.2g2.1gJust under 1 tsp
5g36 kcal4.1g2.6g1 restaurant pat
7g50 kcal5.7g3.6g1 foodservice packet
8g57 kcal6.5g4.1gSpread for 1 slice of toast
10g72 kcal8.1g5.1gSmall knob
12g86 kcal9.7g6.2gGenerous toast spread
15g108 kcal12.2g7.7gJust over 1 tbsp
20g143 kcal16.2g10.3gKnob for a pan
25g179 kcal20.3g12.8g⅒ of a 250g block
30g215 kcal24.3g15.4gAbout 2 tbsp
40g287 kcal32.4g20.5gRoughly 3 tbsp
45g323 kcal36.5g23.1gBaking portion
50g359 kcal40.6g25.7g⅕ of a 250g block
60g430 kcal48.7g30.8gAbout 4¼ tbsp
100g717 kcal81.1g51.4gUSDA reference amount
113g810 kcal91.7g58.0g1 US stick / 4 oz
115g825 kcal93.3g59.1gCommon EU half-block
170g1,219 kcal137.9g87.3g6 oz
200g1,434 kcal162.2g102.7gCommon EU block
250g1,793 kcal202.8g128.4gStandard UK/EU block

Need a weight that isn't listed? Multiply the grams by 7.17. So 35g of butter is 35 × 7.17 = 251 calories. Weighing is the only method that removes guesswork — see how to track butter accurately below.

Butter calories by tablespoon, teaspoon, cup and stick

US volume measures are the most-searched way to size butter, so here is every common amount in one place. One US tablespoon of butter weighs 14.2g and contains 102 calories.

Amount Weight Calories Total Fat Saturated Fat
1 teaspoon4.7g34 kcal3.8g2.4g
2 teaspoons9.5g68 kcal7.7g4.9g
½ tablespoon7.1g51 kcal5.8g3.6g
1 tablespoon14.2g102 kcal11.5g7.3g
1½ tablespoons21.3g153 kcal17.3g10.9g
2 tablespoons28.4g204 kcal23.0g14.6g
3 tablespoons42.6g306 kcal34.6g21.9g
4 tablespoons (¼ cup, ½ stick)56.7g407 kcal46.0g29.1g
5 tablespoons70.9g508 kcal57.5g36.4g
⅓ cup (5⅓ tbsp)75.6g542 kcal61.3g38.8g
6 tablespoons85.1g610 kcal69.0g43.7g
8 tablespoons (½ cup, 1 stick)113.4g810 kcal92.0g58.2g
1 cup (16 tbsp, 2 sticks)226.8g1,626 kcal184.0g116.5g
Why the numbers differ

810, 814 or 816 calories in half a cup of butter?

All three numbers circulate online, and none of them is wrong — they come from different rounding paths for the same amount of butter:

  • 810 kcal — weighing the stick: 113.4g × 7.17 kcal/g. This is the most accurate route.
  • 816 kcal — multiplying the rounded tablespoon: 8 × 102 kcal. The 102 is itself rounded up from 101.8, and that error compounds eight times.
  • 814 kcal — databases that store a slightly different stick weight (113.5g) or an unrounded per-tablespoon value.
Which to log: use 810 if you weighed it, and don't lose sleep over the other two — a 6-calorie spread on half a cup of butter is well inside the margin of error of the butter itself.

Pat, pad, knob, packet: what each butter portion actually weighs

Recipes and menus use a lot of informal butter words, and calorie trackers rarely define them. Here is what each one weighs in practice.

Term Typical weight Calories Notes
1 pat5g36 kcalThe square served on a restaurant butter dish; roughly 1 tsp
1 pad5g36 kcalA common misspelling of "pat" — same thing
2 pats10g72 kcalStandard for a bread basket
1 butter packet7g50 kcalSealed foil/plastic foodservice portion; some brands use 8g (57 kcal)
1 knob (UK)10–15g72–108 kcalDeliberately imprecise; weigh it if the recipe matters
1 tab5g36 kcalAnother name for a pat
1 square5–7g36–50 kcalUsually a pre-cut portion; check the pack
1 cube (US regional)113.4g810 kcalIn parts of the western US, "cube" means a whole stick — a 22× difference from a "square". Confirm which is meant.
1 serving (label)14.2g102 kcalThe FDA reference serving printed on US nutrition labels

Butter macros — what's actually in it

Butter is essentially a concentrated dairy fat. Its macro profile is as simple as it gets: almost entirely fat, trace amounts of everything else.

Nutrient Per 100g Per 1 tbsp (14.2g)
Calories 717 kcal 102 kcal
Total fat 81.1g 11.5g
— Saturated fat 51.4g 7.3g
— Monounsaturated fat 21.0g 3.0g
— Polyunsaturated fat 3.0g 0.4g
Protein 0.6g 0.1g
Carbohydrates 0.1g 0g
Cholesterol 215mg 31mg
Vitamin A 684 µg (76% DV) 97 µg (11% DV)
Vitamin D 1.5 µg 0.2 µg

Butter has essentially zero carbohydrates, making it a staple in ketogenic diets. Its protein content is negligible — butter is churned from cream after most of the milk proteins and lactose have been separated off. What remains is fat, water (around 16–18%), and trace micronutrients, particularly vitamin A from the milk fat globules.

Salted vs unsalted butter — same calories, different sodium

One of the most common questions: is salted butter higher in calories than unsalted? The answer is no. The only meaningful difference between salted and unsalted butter is the sodium content.

Type Calories per tbsp Fat per tbsp Sodium per tbsp
Unsalted butter 102 kcal 11.5g ~2mg
Salted butter 102 kcal 11.5g ~90mg

The salt added to salted butter is typically around 1.6–2% of total weight — enough to make a noticeable flavour difference but not enough to affect calorie count. For calorie tracking, use the same number regardless of which type you're using. If you're watching sodium intake, however, the difference adds up: using 3 tablespoons of salted butter in a recipe adds ~270mg of sodium from the butter alone.

Butter vs olive oil: which has more calories?

Olive oil has more calories by the tablespoon: about 119 calories versus 102 calories in butter. Olive oil is pure fat, while butter also contains water. The 17-calorie difference is small; the amount you pour or spread usually matters more.

1 tablespoon Calories Total fat Saturated fat Main difference
Butter ~102 11.5g 7.3g More saturated fat; dairy flavour
Olive oil ~119 13.5g 1.9g Mostly monounsaturated fat; plant-based

For heart health, the American Heart Association recommends choosing nontropical liquid plant oils, including olive oil, in place of solid fats such as butter more often. That guidance is about the type of fat, not because olive oil is lower in calories. For tracking, measure either one: a free-poured tablespoon of oil is just as easy to underestimate as butter.

Butter vs margarine: are the calories the same?

Regular stick margarine and butter are often close to 100 calories per tablespoon. Soft, whipped and light margarine spreads may contain fewer calories because they include more water. Margarine varies by product, so use its Nutrition Facts label rather than one generic entry.

Per tablespoon Typical calories What to check Best tracking method
Butter ~102 Salted or unsalted; brand variation is small Log grams or tablespoons
Stick margarine Often ~100 Saturated fat and partially hydrogenated oils Use the package label
Soft or light spread Varies widely Serving size, water content and calories Use the exact brand entry

If you are choosing margarine for its fat profile, compare labels. Soft or liquid products made with nonhydrogenated vegetable oil generally contain less saturated fat than butter or hard stick margarine. “Margarine” is a broad category, so the label matters more than the name.

How many calories does butter add when cooking eggs?

One teaspoon of butter adds about 34 calories to fried or scrambled eggs. One tablespoon adds about 102 calories. Two large eggs are about 144 calories before any butter, milk, cheese or toppings are added.

Two large eggs cooked with Butter calories Estimated total
No added butter 0 ~144 calories
1 teaspoon butter (4.7g) +34 ~178 calories
2 teaspoons butter (9.5g) +68 ~212 calories
1 tablespoon butter (14.2g) +102 ~246 calories

If you eat the whole scramble or wipe up the pan with toast, count all the butter you added. If a visible pool remains, the exact amount consumed is hard to know; logging the full amount is a simple, consistent estimate. See our egg calorie guide for boiled, fried, poached and scrambled eggs.

Calories in toast, a bagel or a roll with butter

A slice of toast with a teaspoon of butter is about 113 calories. A plain bagel with a tablespoon of butter is about 372 calories. Almost all of the variation comes from two things: how big the bread is, and how heavily it is buttered — not from the toasting.

This is where butter actually shows up in most people's day. Nobody eats a tablespoon of butter on its own, so the number that matters is the one for the whole item. The bread is the bigger half of that number, and bread portions vary far more than butter does.

Item Bread alone + 1 tsp butter + 1 tbsp butter
Slice of toast (white or wholemeal, ~29g) ~79 ~113 ~181
Dinner roll (~28g) ~87 ~121 ~189
Toasted teacake (~60g) ~190 ~224 ~292
Plain bagel (medium, ~98g) ~270 ~304 ~372
Large deli bagel (~131g) ~360 ~394 ~462

Does toasting bread add calories?

No. Toasting drives off a little water, so a slice gets very slightly lighter, but no calories are added or destroyed. A toasted slice and an untoasted slice from the same loaf have the same calorie count. What changes is behaviour: warm toast absorbs butter faster and tends to get more of it, which is a real difference of 30 to 70 calories per slice.

The practical takeaway: if you want a lower number, the lever is the butter, not the toaster. Spreading with a teaspoon rather than free-handing it from the tub is the single change that moves it most.

Is butter healthy, or should you avoid it?

Butter is not something you need to avoid, but it is not a health food either. It is roughly 63% saturated fat, and major heart-health guidance is consistent on one point: replacing solid fats like butter with liquid plant oils more often is the change associated with better cardiovascular outcomes. How much you use matters more than whether you use any.

The honest version is duller than either side of the internet argument. Butter is a concentrated fat with a well-understood nutrition profile. A teaspoon on vegetables inside an otherwise varied diet is not the thing determining anyone's health. Several tablespoons a day, on top of an already fat-heavy diet, is a different question — and it is a question about the total, not about butter specifically.

The American Heart Association recommends choosing nontropical liquid plant oils — olive, canola, sunflower — in place of solid fats such as butter, lard and coconut oil where you reasonably can. Note the framing: in place of. Adding olive oil on top of your current butter intake is not the intervention being described.

If you are tracking, the useful reframe is that butter is easy to underestimate and easy to reduce without noticing. Most people who cut their butter calories meaningfully did it by measuring rather than by switching products.

This is general nutrition information, not medical advice. If you are managing cholesterol, heart disease or another condition, your doctor or a registered dietitian should guide what fits your situation.

Grass-fed butter: is it actually different?

Grass-fed butter has the same calories as regular butter — about 102 per tablespoon. It does contain modestly more omega-3 fatty acids, conjugated linoleic acid (CLA), vitamin K2 and beta-carotene, which is what makes it visibly more yellow. Those differences are real, but they are small at the amounts anyone actually eats.

If you are choosing grass-fed butter, choose it for taste, colour or farming preferences. Choosing it expecting a nutritional upgrade will disappoint you: the fat and calorie content is essentially unchanged, and the micronutrient gains are measured in fractions of a daily requirement per tablespoon.

Per 1 tablespoon (14.2g) Regular butter Grass-fed butter
Calories ~102 ~102
Total fat 11.5g 11.5g
Saturated fat 7.3g ~7.0–7.3g
Omega-3 Trace Modestly higher
Beta-carotene Lower Higher (deeper yellow)

For tracking purposes, log grass-fed butter exactly as you would any other butter. If your app offers a separate grass-fed entry, the difference it makes to your daily total is smaller than the error in eyeballing the portion.

How to track butter accurately

Tracking Tip #1

Use a kitchen scale, not measuring spoons

A "tablespoon" of butter varies significantly depending on how firm the butter is and how you scoop it. Cold butter from the fridge in a tablespoon measure weighs about 14g. Soft, room-temperature butter mounded in a tablespoon can weigh 18–20g. That's a 40% calorie difference from the same spoon. Weighing on a scale takes 2 seconds and is far more accurate.

In practice: Place your pan, toast, or mixing bowl on the scale, tare to zero, then slice off butter directly until you hit your target grams. 14g = ~102 kcal. Easy.
Tracking Tip #2

Account for butter left in the pan

Butter contains water that can evaporate during cooking, but its calories come mainly from the fat. If you eat everything from the pan, count all the butter you added. If a visible pool remains, there is no reliable way to estimate the exact amount without weighing it, so logging the full amount gives you a simple and consistent upper estimate.

Tracking Tip #3

Use the weight in grams, not tablespoons, in your app

Most calorie tracking apps let you enter the amount in grams rather than tablespoons. This is more accurate because the calorie database entries are based on exact weights. Search "butter" and select "100g serving," then type the actual grams you weighed. This avoids the tablespoon measurement ambiguity entirely.

Quick reference: 10g butter = ~72 kcal · 15g = ~108 kcal · 20g = ~143 kcal · 30g = ~215 kcal

Frequently asked questions

How many calories are in a tablespoon of butter?

One tablespoon of butter (14.2g) contains approximately 102 calories, 11.5g of fat, 0.1g of protein and effectively zero carbohydrates.

How many calories are in a pat of butter?

A standard 5g pat of butter contains approximately 36 calories. Restaurant pats can vary in size, so check the weight when available.

How many calories are in a teaspoon of butter?

One teaspoon of butter weighs about 4.7g and contains approximately 34 calories. Three teaspoons equal one tablespoon, or about 102 calories.

How many calories are in a stick of butter?

One US stick of butter weighs about 113g, equals 8 tablespoons and contains approximately 810 calories.

How many calories are in 50g of butter?

Fifty grams of butter contains approximately 359 calories, 40.6g of total fat and 25.7g of saturated fat. That is about 3½ tablespoons, or one fifth of a standard 250g block.

How many calories are in half a cup of butter — 810, 814 or 816?

All three figures describe the same amount of butter and differ only by rounding. Half a cup is 8 tablespoons or 113.4g. Weighing it gives 113.4 × 7.17 = 810 calories and that is the most accurate figure. Multiplying the rounded per-tablespoon value gives 8 × 102 = 816, because the 102 is itself rounded up from 101.8 and that error compounds. Some databases store 814 from a slightly different stick weight. Use 810 if you weighed it.

Why does one tablespoon of butter show as 102 calories in USDA data?

The USDA lists salted butter at 717 calories per 100g. One US tablespoon weighs 14.2g, so 14.2 × 7.17 = 101.8 calories, which rounds to 102. Some apps display 100 or 101 instead because they round the per-gram value first. The difference is not meaningful for tracking.

What is the difference between a pat, a pad, a knob and a cube of butter?

A pat is the 5g restaurant portion (36 calories), and pad is simply a common misspelling of it. A knob is a British cooking term for roughly 10–15g (72–108 calories) and is deliberately imprecise. A cube is the one to watch: in parts of the western United States it means an entire 113g stick — 810 calories, more than twenty times a pat. If a recipe says "cube", confirm which is meant before logging it.

How many WeightWatchers points is butter?

Butter carries a high points value because it is almost pure fat, but WeightWatchers no longer publishes a single fixed number — values differ by plan and are personalised to each member, and the algorithm has changed several times. Scan the product in the WW app for the current value rather than relying on a figure found online. For reference, a tablespoon is 102 calories and 11.5g of fat.

How many calories are in 100g of butter?

One hundred grams of butter contains approximately 717 calories, 81g of total fat, 0.6g of protein and 0.1g of carbohydrates.

How many calories are in 10g of butter?

Ten grams of butter contains approximately 72 calories. It is about 2 teaspoons or a little under three-quarters of a tablespoon.

Does salted butter have more calories than unsalted butter?

No. Salted and unsalted butter both contain about 102 calories per tablespoon. Salted butter contains much more sodium, and the exact amount varies by brand.

Is butter worse than olive oil for calories?

Butter has fewer calories per tablespoon than olive oil: about 102 calories versus 119. Olive oil is mostly monounsaturated fat while butter is high in saturated fat.

Does butter or margarine have more calories?

Butter and regular stick margarine are often similar at around 100 calories per tablespoon. Soft, whipped and light margarine spreads may be lower, so check the product label.

How many calories does butter add to eggs?

Butter adds about 34 calories per teaspoon or 102 calories per tablespoon. Two large eggs cooked with one teaspoon of butter contain about 178 calories in total.

Does melted butter have more calories?

No. Melting butter does not create calories. The same weight has essentially the same calories before and after melting.

How many calories are in toast with butter?

One slice of toast with a teaspoon of butter is about 113 calories — roughly 79 from the bread and 34 from the butter. With a full tablespoon of butter it is about 181 calories. Toasting itself adds no calories.

How many calories are in a bagel with butter?

A medium plain bagel (about 98g) with one tablespoon of butter is roughly 372 calories. A large deli bagel with the same butter is closer to 462 calories, because the bagel size varies far more than the butter does.

Is grass-fed butter healthier than regular butter?

Grass-fed butter has the same calories as regular butter, about 102 per tablespoon, and nearly the same fat profile. It contains modestly more omega-3, CLA, vitamin K2 and beta-carotene, but the amounts are small per tablespoon. Choose it for taste or farming preference rather than for a nutritional upgrade.

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