Eggs & Dairy
Butter nutrition facts
A 1 undetermined pat (1" sq, 1/3" high) (5 g) serving of butter provides 36 calories, 0 g protein, 0 g carbohydrate, and 4 g fat — about 0% of its calories from protein, 0% from carbohydrate, and 100% from fat. The interactive label below toggles between a serving and 100 g.
Calorie split
| Nutrient | Per 1 undetermined pat (1" sq, 1/3" high) (5 g) | Per 100 g |
|---|---|---|
| Calories | 36 | 717 |
| Protein | 0 g | 1 g |
| Total carbohydrate | 0 g | 0 g |
| Total fat | 4 g | 81 g |
Vitamins & minerals
Per serving (5 g)
- Vitamin A (RAE)
- 34.2 mcg
- Vitamin E
- 0.12 mg
- Vitamin K
- 0.35 mcg
- Thiamin (B1)
- 0.00 mg
- Riboflavin (B2)
- 0.00 mg
- Niacin (B3)
- 0.00 mg
- Vitamin B6
- 0.00 mg
- Folate (DFE)
- 0.15 mcg
- Vitamin B12
- 0.01 mcg
- Magnesium
- 0.10 mg
- Phosphorus
- 1.20 mg
- Zinc
- 0.00 mg
- Selenium
- 0.05 mcg
Photo by Felicity Tai on Pexels
Selecting, storing & prepping butter
- Selecting
- Salted and unsalted butter aren't just a taste preference in baking — unsalted lets a recipe control salt precisely, while salted acts as a natural preservative and keeps slightly longer.
- Storing
- Butter keeps about 1 month in the refrigerator past any printed date, or up to a year in the freezer well-wrapped. Keeping it away from strong-smelling foods matters — butter readily absorbs odors.
- Prepping
- Cutting cold butter into small cubes speeds up softening to room temperature for baking — usually ready in about 15 minutes instead of an hour for a whole stick.
Storage guidance from the USDA FoodKeeper database (FSIS, Cornell University, and the Food Marketing Institute).
Nutrition highlights
Per 1 undetermined pat (1" sq, 1/3" high) (5 g), butter provides 0 g protein, 0 g carbohydrate, and 4 g fat, with no single vitamin or mineral reaching 10% of the Daily Value.
% of the FDA Daily Value per 1 undetermined pat (1" sq, 1/3" high) (5 g) serving.
Key metrics
Nutrient density
Per 100 kcal, butter delivers about 1% of a Daily Value on average across 22 beneficial nutrients. The score is its percentile for that measure among the 177 foods in our database — higher means more nutrition per calorie. How this is calculated.
- More vitamin A than 98% of foods · 100% of eggs & dairy
Density counts protein, fiber, and vitamins and minerals (not fat, sodium, or sugar), each capped so a single nutrient can’t dominate, with a calorie floor so very-low-calorie foods aren’t overstated. It measures nutrition per calorie within our database — a useful guide, not a complete verdict on how “healthy” a food is.
Similar foods & swaps
The closest eggs & dairy to butter by nutrition (per 100 g), and how each differs.
Questions
- How many calories are in butter?
- A 1 undetermined pat (1" sq, 1/3" high) (5 g) serving of butter has about 36 calories. Per 100 g, it has 717 calories — a very high calorie density.
- How much protein is in butter?
- Butter provides about 0 g of protein per 1 undetermined pat (1" sq, 1/3" high) (5 g) serving.
- What are the macros in butter?
- Per serving, butter has roughly 0 g protein, 0 g carbohydrate, and 4 g fat. By calories, that is 0% protein, 0% carbohydrate, and 100% fat.
- Is butter high in protein?
- Butter has a protein density of about 0.1 g per 100 kcal, and 0% of its calories come from protein. Foods above roughly 10 g per 100 kcal are generally considered protein-dense.
- What vitamins and minerals are in butter?
- Butter contains small amounts of several vitamins and minerals; see the full label above for the complete micronutrient breakdown.
- What is the nutritional value of butter?
- Per 1 undetermined pat (1" sq, 1/3" high) (5 g), butter has 36 calories, 0 g protein, 0 g carbohydrate, and 4 g fat. See the full nutrition facts label above for every vitamin and mineral.
Use it
More eggs & dairy
References & methodology
- Data source: U.S. Department of Agriculture, Agricultural Research Service — FoodData Central, FDC ID 173410 (public domain).
- Daily Values: FDA Nutrition Facts label, 2016 update (adults and children aged 4+).
- Source claims: a serving supplying 10–19% of the Daily Value is a “good source”; 20% or more is an “excellent source” (FDA, 21 CFR 101.54).
- Calorie split: Atwater general factors — 4 kcal/g for protein and carbohydrate, 9 kcal/g for fat.
- Last reviewed: June 2026. Values are typical figures and vary with variety, ripeness, and preparation.
NutriFactsHub. “Butter Nutrition Facts.” https://nutrifactshub.com/foods/butter