Butter Calories & Nutrition Facts
Rich in fat-soluble vitamins A, D, E and K2, contains CLA and butyric acid.
Quick answer
How many calories are in Butter?
Butter has 717 calories per 100g. A 1 oz (28g) has about 201 calories. It is a calorie-dense food, with most calories coming from fat.
Start with your portion
Turn Butter into a daily plan
Practical Portion Guide for Butter
| Portion | Calories | Protein | Carbs | Net carbs | Fat |
|---|---|---|---|---|---|
| 1 oz (28g) | 201 kcal | 0.3g | 0.0g | 0.0g | 22.7g |
| 50g snack portion | 359 kcal | 0.5g | 0.1g | 0.1g | 40.5g |
| 100g reference | 717 kcal | 0.9g | 0.1g | 0.1g | 81.0g |
| 200g larger portion | 1434 kcal | 1.8g | 0.2g | 0.2g | 162.0g |
Use gram-based portions when precision matters, especially during weight loss or macro tracking.
% Daily Value: 1 oz (28g) vs 100g
Percent Daily Values use the FDA reference amounts for adults (protein 50g, fiber 28g, carbohydrate 275g, fat 78g, sodium 2,300mg, cholesterol 300mg, potassium 4,700mg). The FDA label guide treats 20% DV or more per serving as high and 5% DV or less as low.
| Nutrient | Per 100g | % DV | 1 oz (28g) | % DV |
|---|---|---|---|---|
| Protein | 0.9g | 2% | 0.3g | 1% |
| Dietary fiber | 0g | 0% | 0g | 0% |
| Total carbohydrate | 0.1g | 0% | 0g | 0% |
| Total fat | 81g | 104% | 22.7g | 29% |
| Sodium | 714mg | 31% | 200mg | 9% |
| Cholesterol | 215mg | 72% | 60mg | 20% |
Source: FDA Daily Values (21 CFR 101.9), checked September 17, 2026.
Serving Size Calculator
Macros Breakdown (per 100g)
Diet Suitability
How Butter Fits Into a Diet
Butter can fit a balanced diet when portioned against your calorie and macro targets.
Build meals around protein, fiber, and minimally processed ingredients to make the portion more filling.
Preparation method, brand, and added ingredients can change the final nutrition values.
Plan Around Butter
Compare Butter With Similar Dairy
Use this comparison when choosing a serving. Calories alone do not tell the full story: protein, fiber, fat, sodium, and realistic portion size determine whether a food fits your plan.
| Food | Calories | Protein | Carbs | Fat | Fiber |
|---|---|---|---|---|---|
| Butter | 717 kcal | 0.9g | 0.1g | 81g | 0g |
| Whole Milk | 61 kcal | 3.2g | 4.8g | 3.3g | 0g |
| Greek Yogurt (Plain) | 97 kcal | 9g | 3.6g | 5g | 0g |
| Cheddar Cheese | 402 kcal | 25g | 1.3g | 33g | 0g |
| Mozzarella Cheese | 280 kcal | 28g | 2.2g | 17g | 0g |
| Heavy Cream | 340 kcal | 2.1g | 2.8g | 36g | 0g |
All comparison values use each food's 100-unit reference so foods can be compared on the same basis.
Vitamins & Minerals
Vitamins
Minerals
Complete Nutrition Facts (per 100g)
% DV = percent of the FDA Daily Value for a 2,000-calorie diet, per 100g. Total sugars have no Daily Value; the FDA value applies to added sugars only.
Methodology & Nutrition Data Sources
How we calculate nutrition data for Butter: Calorie and macronutrient values are standardized reference profiles, generally based on USDA FoodData Central entries where available, then scaled to the serving you choose. Entries may come from different FDC data types or releases, and brand or preparation differences can change the numbers.
- Calorie and macronutrient data sourced from the USDA FoodData Central , the federal food composition database used as the main reference where a matching entry exists.
- Daily Value context: for % DV comparisons, use the FDA Daily Value reference amounts for a 2,000 calorie diet (21 CFR 101.9).
- Dietary reference intakes (DRI) for vitamins and minerals are available in the National Academies Dietary Reference Intake tables for further reading; this page does not calculate DRI percentages.
- Glycemic index values are approximate listed values; GI varies by variety, ripeness, and preparation, so compare with the Harvard Health Glycemic Index Reference and the University of Sydney GI database.
- Dietary guidelines context from the HHS/USDA Dietary Guidelines for Americans 2020–2025 , the federal evidence-based nutrition guidance.
Authoritative nutrition data sources:
- USDA FoodData Central, comprehensive food composition database
- FDA Nutrition Facts Label rules, % Daily Value methodology
- NIH Office of Dietary Supplements, vitamin and mineral research
- CDC Nutrition, Public Health Guidance, chronic disease and diet
- HHS/USDA Dietary Guidelines 2020–2025, federal nutrition recommendations
- Harvard T.H. Chan School of Public Health, The Nutrition Source, evidence-based dietary guidance
Nutrition Disclaimer: Calorie and nutrient values are generally based on USDA reference data and may vary by brand, preparation method, ripeness, and cooking technique. These values are for informational purposes only and should not replace personalized dietary advice from a registered dietitian. Individuals with medical conditions should consult a healthcare provider before making significant dietary changes.
Reviewed by Priya Lindqvist · Last updated September 17, 2026 · Values may not reflect the newest USDA FoodData Central release
Track Your Nutrition
Use our free calorie calculator to find out exactly how many calories you need per day.
Frequently Asked Questions
Is Butter high in protein?
Butter has 0.9g protein per 100g, which is 2% of the 50g FDA Daily Value. 1 oz (28g) supplies about 0.3g, or 1% DV. Under the FDA label guide (20% DV or more per serving is high, 5% or less is low), that serving counts as a low-protein serving.
How many calories are in Butter?
Butter contains 717 calories per 100g serving. Using general 4-4-9 calorie factors, that is roughly 4 calories from protein, 0 calories from carbohydrates, and 729 calories from fat; these estimates may not add up exactly to the listed total.
Is Butter good for weight loss?
Butter is calorie-dense at 717 per 100g. For weight loss, use it in smaller portions and balance with lower-calorie, high-fiber foods to manage total intake.
How much protein is in Butter?
Butter contains 0.9g of protein per 100g. This is a relatively low protein food; consider pairing it with higher protein sources.
What serving size should I track for Butter?
Track Butter by grams when precision matters. A practical starting point is 1 oz (28g), which is about 201 calories. For packaged, restaurant, fried, sauced, or sweetened versions, use the product label because brand formulas can differ from the plain reference.
Is Butter keto-friendly?
Yes, Butter is keto-friendly with only 0.1g of carbohydrates per 100g. It fits well within the typical keto macro limits of 20-50g net carbs per day.
Is Butter good for diabetics?
People with diabetes should use caution with Butter. Its carbohydrate content may affect blood sugar response depending on portion size and meal context. Consult your healthcare provider for personal advice.
What vitamins and minerals are in Butter?
Calorique's food profile lists vitamins A, D, E, K2 and minerals including Calcium, Phosphorus, Potassium for Butter. These are general highlights, not measured amounts or a "good source" rating; check USDA FoodData Central or the product label for exact micronutrient values.
Where does Calorique get nutrition data for Butter?
Calorique standardizes Butter nutrition values per 100g using USDA FoodData Central reference fields where available, then scales the data into realistic serving sizes. FDA Nutrition Facts methodology and authoritative nutrition references are used for context. This page was last reviewed September 17, 2026.
Related Calculators
Whole Milk
61 cal · 3.2g protein per 100g
Greek Yogurt (Plain)
97 cal · 9g protein per 100g
Cheddar Cheese
402 cal · 25g protein per 100g
Mozzarella Cheese
280 cal · 28g protein per 100g
Heavy Cream
340 cal · 2.1g protein per 100ml
Parmesan Cheese
431 cal · 38g protein per 100g
Skim Milk (Non-fat)
34 cal · 3.4g protein per 100ml
Cream Cheese
342 cal · 6g protein per 100g