QUICK ANSWER
How many calories are in unsalted butter?
Butter without salt provides 717 kcal per 100 g. Scale from the edible portion and keep other states separate.
717 kcal / 100 gNutrition values describe a reference food state, not every individual item. Variety, water content, preparation and portion weight can change the estimate.
THE NUMBERS
Unsalted butter nutrition facts per 100 g
The values below use the reference state shown at the top of this page. Keeping one gram basis makes it easier to compare foods before translating the values to the portion you actually ate.
- Calories
- 717 kcal
- Protein
- 0.85 g
- Carbohydrate
- 0.06 g
- Fat
- 81.1 g
- Fibre
- 0 g
- Vitamin A
- 684 µg RAE
- Vitamin E
- 2.32 mg
- Vitamin K
- 7 µg
Source: USDA FoodData Central SR Legacy record 173430. Values may be rounded for readability.
SERVING SIZE
Calories by portion and serving weight
Words such as “small,” “medium,” “half” and “one piece” are convenient but imprecise. Grams make the estimate reproducible, particularly when natural foods vary in size.
MACROS
Carbohydrate, protein and fat explained
Protein
0.85 g per 100 g. From Butter, without salt.
Carbohydrate
0.06 g per 100 g. From Butter, without salt.
Fat
81.1 g per 100 g. From Butter, without salt.
MORE THAN CALORIES
Fibre, vitamins and minerals
One food does not need to provide every nutrient. These are the characteristics most useful for understanding where unsalted butter fits in a varied eating pattern.
Vitamin A
684 µg RAE per 100 g in the selected USDA record.
Vitamin E
2.32 mg per 100 g in the selected USDA record.
Vitamin K
7 µg per 100 g in the selected USDA record.
Calcium
24 mg per 100 g in the selected USDA record.
FOOD STATE MATTERS
How preparation changes the nutrition estimate
A reliable calorie entry should describe the food you actually ate—not merely a food with a similar name.
Unsalted
Selected reference.
Salted
Mapped separately from unsalted butter.
Whipped or light
Choose the matching product because density and formulation differ.
Clarified butter or ghee
Mapped as a separate butter product.
PRACTICAL CONTEXT
How unsalted butter can fit different goals
There is no universal “good” or “bad” food. Portion, frequency, the rest of the meal, preferences and individual health needs all matter.
Portion math
At 717 kcal per 100 g, the 5 g example is 35.9 kcal.
Fibre check
The selected record lists 0 g fibre per 100 g.
Protein check
The selected record lists 0.85 g protein per 100 g.
Best logging move
Measure the butter used and choose its salt, whipped, light or clarified form.
QUALITY & SAFETY
How to choose, store and prepare it
Store
Follow package storage directions and keep the wrapper or container closed.
After opening or cutting
Use a clean utensil and avoid introducing crumbs.
Prepare
Keep butter away from raw-food juices and allergen cross-contact where relevant.
Safety boundary
The nutrient record does not set dairy-safety limits or storage duration; follow package and local guidance.
PHOTO LOGGING
How to log unsalted butter more accurately
A food photo can suggest the ingredient, but it cannot always reveal exact weight, hidden oil or preparation details. These checks turn an image guess into a better estimate.
- 01
Match the exact reference state: Butter, without salt.
- 02
Use edible grams. Calories are scaled from the selected per-100-g record; named portion weights come from the same local USDA record.
- 03
Log oil, sauce, sweetener, salt and recipe ingredients separately.
- 04
Use a separate record when preparation changes the food state.
COMMON QUESTIONS
Unsalted butter calorie and nutrition questions
How many calories are in 100 g of butter?
717 kcal in the selected Butter, without salt record.
How much fibre is in butter?
0 g per 100 g in the selected record.
Which butter state does this page use?
Butter, without salt. Preparation and edible state are part of the answer.
Does salted butter use the unsalted values?
Not automatically. Salted butter has separate mapped records.
How are the portion calories calculated?
Each portion is scaled from 717 kcal per 100 g. Named portion weights come from the selected source record.
KEEP EXPLORING
Related food guides
SOURCES & METHOD
Where these numbers come from
Butter, without salt, per 100 g edible portion. Numeric nutrition and named-portion claims use the nutrition-reviewed local USDA record. Preparation notes cover the common USDA forms of this food. The nutrient record does not establish storage duration, clinical advice or food-safety limits; use package directions and current authoritative guidance where relevant.
Open USDA FoodData Central SR Legacy record 173430 ↗Page reviewed 26 August 2026. We show the food state, gram basis and source record so readers can check the estimate instead of treating one number as universally exact.