Calories in Butter

Updated July 2026 · Reviewed by CaloriesCalc Team · Source: USDA FoodData Central

717
kcal
per 100g
0.85
g
Protein
81.1
g
Fat
0.06
g
Carbs
0.0
g
Fiber
100
kcal per tablespoon (14g)
35
kcal per teaspoon (5g)
201
kcal per oz (28g)
Butter nutrition facts and calories per 100g
💊Vitamin A — 97% Daily Value per 100g
🐄Vitamin K2 — especially grass-fed butter
🔥717 kcal per 100g — very calorie dense
🥄100 kcal per tablespoon — portion matters
🧈CLA — anti-cancer fatty acid
😌Near zero carbs — lactose-free

Calculate Calories for Any Butter Weight

Weight100g

Nutrition Facts

Per 100g butter

* % Daily Value based on a 2,000 kcal diet.


Quick summary: Butter contains 717 calories per 100g — one of the most calorie-dense foods. One tablespoon (14g) has 100 calories. Butter is 80% fat, primarily saturated. It provides 97% of daily vitamin A per 100g and meaningful vitamin K2 (from grass-fed cows). Recent evidence shows moderate butter consumption is not associated with cardiovascular disease in balanced diets.

Vitamins & Minerals — per 100g

NutrientAmount% Daily ValueBar
Vitamin A684µg76%
Vitamin E2.32mg15%
Vitamin K7.0µg6%
Riboflavin (B2)0.03mg2%
Phosphorus24mg2%
Calcium24mg2%
Choline18.8mg3%
Potassium24mg1%
Sodium11mg0%
Zinc0.09mg1%

Calories in Butter by Weight

WeightCaloriesProteinFatCarbs
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Macronutrient Breakdown — per 100g

Protein0.85g · 0% of calories
Fat81.1g · 98% of calories
Carbohydrates0.06g · 0% of calories

Butter is 80% fat, 16-17% water, ~2-3% milk solids. Clarified butter (ghee): ~900 kcal/100g (no water). Unsalted butter: 11mg sodium. Salted butter: ~580mg sodium/100g. Grass-fed butter has more vitamin K2, CLA, and omega-3.

Micronutrient Highlights

💊
Vitamin A
684µg
76% DV
Vision, immune function, skin health
🐄
Vitamin K2
~15µg (grass-fed)
~12%
Bone health and arterial protection
🧈
Saturated fat
51g
Primary fat — largely palmitic and stearic acid
🐄
CLA
0.5-2g (grass-fed)
Fatty acid
Anti-cancer and body composition benefits
Vitamin E
2.32mg
15% DV
Fat-soluble antioxidant
🔬
Butyrate
~4g
Short-chain FA
Anti-inflammatory — feeds colon cells

Butter Health Facts

Vitamin A — 97% of Daily Value

Butter is one of the richest dietary sources of preformed vitamin A (retinol) — providing 684µg per 100g (76% DV). Unlike beta-carotene from plants, retinol in butter is directly bioavailable without conversion. Vitamin A is essential for vision, immune function, and skin health. Grass-fed butter has significantly more vitamin A and beta-carotene (which gives it a deeper yellow colour) than grain-fed butter.

Butyrate — Anti-Inflammatory Fatty Acid

Butter fat contains approximately 4g of butyrate per 100g — a short-chain fatty acid that is the preferred energy source for colon cells (colonocytes). Butyrate maintains gut lining integrity, has powerful anti-inflammatory effects, and reduces cancer cell growth in colon cancer research. Interestingly, gut bacteria produce butyrate from dietary fibre fermentation — butter provides preformed butyrate directly.

The Saturated Fat Reconsideration

Butter is approximately 51% saturated fat — long considered the main dietary driver of cardiovascular disease. However, a comprehensive 2020 review of 35 meta-analyses concluded that saturated fat intake is not significantly associated with cardiovascular disease when considering replacement nutrients. Replacing saturated fat with refined carbohydrates (common in low-fat diets) does not improve cardiovascular outcomes. The quality of the overall diet matters more than butter consumption in isolation.

CLA and Metabolic Effects

Grass-fed butter contains 0.5-2g of CLA per 100g — a naturally occurring fatty acid with demonstrated anti-cancer properties, fat reduction, and lean mass preservation effects in research. CLA is produced by bacteria in the rumen of grass-fed ruminants and is substantially higher in butter from grass-fed vs grain-fed cows. Regular consumption of grass-fed butter is a practical way to increase dietary CLA intake.

Is Butter Suitable for Your Diet?

Weight loss
High calorie — 100 kcal/tbsp
Keto
Yes — pure fat, near zero carbs
Paleo
Yes — especially grass-fed
Gluten-free
Yes
⚠️
Diabetic
Yes — zero carbs, watch sat fat
Lactose-free
Very low lactose
Vegan
No
Vegetarian
Yes

Frequently Asked Questions

How many calories in butter?
Butter has 717 calories per 100g. One tablespoon (14g): 100 kcal. One teaspoon (5g): 35 kcal. Ghee (clarified butter): ~900 kcal/100g.
Is butter bad for you?
Evidence is now mixed. Multiple large studies show no significant association between butter consumption and cardiovascular disease. A 2016 meta-analysis found each daily tablespoon of butter was associated with a 4% lower risk of type 2 diabetes. In moderation within a balanced diet, butter is not the health hazard it was once claimed to be.
Butter vs margarine — which is healthier?
Current evidence favours butter over most margarines. Margarine traditionally contained trans fats (largely removed now), and many still contain refined vegetable oils. Butter provides naturally occurring fats, vitamin K2, and CLA. Most nutrition researchers now consider butter the better choice over processed margarine.
Is butter keto?
Yes — nearly zero carbs (0.06g/100g). Butter is one of the foundational keto foods, providing pure fat for energy. Ghee is even more popular on keto for its higher smoke point and pure fat content.
Is grass-fed butter healthier?
Yes — grass-fed butter has significantly more vitamin K2, CLA, and omega-3 fatty acids than conventional butter. It also has a more flavourful, complex taste. Kerrygold and other grass-fed brands are preferred for maximising nutritional benefits.
How much butter per day is safe?
One tablespoon per day (100 kcal) is generally considered moderate. Butter's main nutritional risk is its calorie density and saturated fat content — managing portions is the key consideration.

Nutrition values from USDA FoodData Central. Not medical advice.