Fat in 100g Butter = 81.1 g | Nutrition

100g of Butter contains 81.1 g of fat. Free converter with serving tables, volume conversion, raw vs cooked, and FAQs. Data from USDA FoodData Central.

Fat in 100g Butter Calculator

100g of Butter contains 81.1 g of fat. Use the converter above to calculate any weight, volume, or household serving, then compare the tables below. All values from USDA FoodData Central.

Result

100g Butter Fat

81.1 g fat

Computed from 100 g of food and USDA FoodData Central reference.

Reverse Calculation

Fat target to food amount

100 g (3.53 oz, 0.46 cups)

Reverse math uses 81.1 g fat per 100 g from USDA FoodData Central reference.

Butter Macros by Serving Size

Serving	Gram Equivalent	Calories (kcal)	Protein	Carbohydrates	Fat
50 g	50 g	358.5	0.5 g	0.1 g	40.6 g
75 g	75 g	537.8	0.7 g	0.1 g	60.8 g
100 g	100 g	717	0.9 g	0.1 g	81.1 g
150 g	150 g	1075.5	1.4 g	0.2 g	121.7 g
200 g	200 g	1434	1.8 g	0.2 g	162.2 g
250 g	250 g	1792.5	2.3 g	0.3 g	202.8 g

Butter Macros by Common Serving

Serving	Weight	Calories	Protein	Carbs	Fat
Small weighed portion	75 g	538	0.7 g	0.1 g	60.8 g
Standard 100g reference	100 g	717	0.9 g	0.1 g	81.1 g
Large weighed portion	150 g	1076	1.4 g	0.2 g	121.7 g

Butter Fat Range Around 100g

Serving	Gram Equivalent	Fat	Calories
50 g	50 g	40.6 g	359
75 g	75 g	60.8 g	538
100 g	100 g	81.1 g	717
150 g	150 g	121.7 g	1076
200 g	200 g	162.2 g	1434
250 g	250 g	202.8 g	1793

Butter Macros by Volume Measure

Volume Measure	Equivalent Weight	Calories (kcal)	Protein	Carbs	Fat
1 US teaspoon	4.5 g	32.3	0 g	0 g	3.6 g
1 US tablespoon	13.5 g	96.8	0.1 g	0 g	10.9 g
1 US fluid ounce	26.9 g	192.9	0.2 g	0 g	21.8 g
1/4 US cup	53.9 g	386.5	0.5 g	0.1 g	43.7 g
1/3 US cup	71.8 g	514.8	0.6 g	0.1 g	58.2 g
1/2 US cup	107.8 g	772.9	1 g	0.1 g	87.4 g
1 US cup	215.5 g	1545.1	1.9 g	0.2 g	174.8 g
1 US pint	431.1 g	3091	3.9 g	0.4 g	349.6 g
1 US quart	862.1 g	6181.3	7.8 g	0.9 g	699.2 g
1 US gallon	3448.5 g	24725.7	31 g	3.4 g	2796.7 g
100 mL	91.1 g	653.2	0.8 g	0.1 g	73.9 g
1 liter	911 g	6531.9	8.2 g	0.9 g	738.8 g

Butter Prep-State Logging Check

Prep State	Weight	Fat	Concentration
Raw	100 g	81.1 g	81.1 g/100 g
Cooked data not listed	Use cooked USDA entry	Do not infer	Separate cooked record preferred

Butter Nutrient Efficiency Per Calorie

Nutrient	Per 100 g	Per 100 kcal	% Daily Value (per 100 g)
Protein	0.9 g	0.13 g/100 kcal	1.8%
Carbs	0.1 g	0.01 g/100 kcal	0%
Fat	81.1 g	11.31 g/100 kcal	104%

Butter Dietary Profile

Butter is a versatile food suitable for most dietary patterns. Check macros above for your specific dietary requirements.

Butter Benefit Signals

Portion-controlled base: Best value comes from weighing the serving and matching the source prep state. Basis: computed fallback.

Butter Daily Nutrient Coverage

Nutrient	This serving	Reference	Coverage	Signal
Protein	1 g	50 g	2%	Starter contribution
Sodium	0 mg	2300 mg	0%	Low limit contribution
Potassium	0 mg	4700 mg	0%	Starter contribution

Smart Fat Substitutes for Butter

Food	Equivalent portion	Category	Protein delta	Calorie delta	Sodium delta
Olive oil	81 g	Fat	-0.9 g	+0 kcal	+0 mg
Canola oil	81 g	Fat	-0.9 g	+0 kcal	+0 mg
Coconut oil	81 g	Fat	-0.9 g	-18 kcal	+0 mg
Mayonnaise	108 g	Fat	+0.2 g	+19 kcal	+0 mg
Walnuts	124 g	Fat	+18 g	+96 kcal	+0 mg
Cashew Butter	153 g	Fat	+17.6 g	+215 kcal	+451 mg

Butter Condition-Aware Nutrition Notes

Type	Context	Guidance	Basis
mayFit	low sodium goal	May fit low-sodium meal planning at this serving size.	0 mg sodium

Real-World Butter Serving Sizes

Small weighed portion (~75g): 60.8 g fat. Useful when checking a smaller weighed serving.
Standard 100g reference (~100g): 81.1 g fat. Matches the USDA per-100g source basis used on this page.
Large weighed portion (~150g): 121.7 g fat. Useful for larger weighed servings and meal-prep portions.

Common Butter Measurement Mistakes

Mixing raw and cooked entries changes the math. This page uses the listed source record for Butter.
Adding oil, sauces, sweeteners, breading, or drained liquid changes calories and macros beyond the base food values.
For fat tracking, keep the same unit basis across the meal: grams, ounces, cups, or count-based servings should not be mixed without conversion.

Butter Fat — Frequently Asked Questions

How much fat is in 100g of Butter? 100g of Butter contains 81.1 g of fat (USDA FoodData Central). High in fat.

How much fat is in 1 cup of Butter? One US cup of butter weighs approximately 216g (density: 911 kg/m³). That serving contains 175.2 g of fat — computed as 216g ÷ 100 × 81.1.

How many grams of Butter do I need to eat to get 20 g of fat? To reach 20 g of fat from Butter, you need approximately 25g — calculated as (20 ÷ 81.1) × 100 = 25g.

Is Butter high in fat? Yes, Butter is high in fat at 81.1 g per 100g. It ranks among the better sources in its category.

What percentage of daily fat does 100g of Butter provide? 100g of Butter provides 81.1 g of fat, which is 104% of the reference daily intake (78 g/day for adults, based on a 2000-calorie diet). To reach 100% of your daily fat from Butter alone, you would need ~96g.

How efficient is Butter as a source of fat per calorie? Butter provides 11.31 g of fat per 100 kcal, making it excellent as a fat-per-calorie source. This is useful for calorie-restricted diets where macronutrient density matters.

What formula does this Butter fat calculator use? The calculator uses fat = weight in grams / 100 x 81.1 g. For example, 100g of Butter gives 81.1 g of fat. Volume entries are first converted to grams using the food density value, then the same per-100g formula is applied.

Is Butter a good food for keto or high-fat goals? For keto or high-fat goals, Butter is an excellent choice — with 81.1 g of fat per 100g. For best results, combine Butter with other foods to hit your daily macro targets.

How reliable is the source data for Butter? Butter uses USDA FoodData Central reference as the nutrition source. Gram-based calculations use the per-100g source values, while cup and spoon estimates depend on the listed density and should be treated as practical serving estimates.

Should I measure Butter raw or cooked? Butter should be logged in the same prep state as the source record. If you weighed it cooked, avoid comparing it directly with a raw entry unless a cooked yield factor is available.

How to Calculate Butter Fat

Weigh raw. Place your butter on a kitchen scale before cooking to get the most accurate starting weight.
Enter weight into the calculator. Select your unit (g, oz, lb, or cup) and hit Calculate.
Read the result. The calculator shows fat content for your exact portion.
Compare servings. Use the serving range table below to quickly compare fat across portion sizes.
Log to your tracker. Enter the raw weight and raw entry in your nutrition app for consistent macro tracking.

Why Volume ≠ Weight: Butter Density Explained

Butter has a medium density (911 kg/m³). A 1-cup measure holds approximately 216 g.

Why does density matter? The same volume can hold very different amounts of food depending on how dense it is. Oats (350 kg/m³) are light and airy — 1 cup = ~80 g. Water has a density of 1000 kg/m³ — 1 cup = 236 g. This is why nutrition labels use weight (grams), not volume — it's a more reliable measure.

Formula: mass (g) = volume (mL) × density (kg/m³) ÷ 1,000. This calculator uses this formula automatically when you enter a volume measure for Butter.

Butter Page Quality Signals

Source, density, prep-state, serving, and allergen checks used to decide whether this page is safe to promote from generated to indexed.

Data Sources & Methodology

Data source: USDA FoodData Central.

Computation method: Macro values are calculated by multiplying the food's per-100g value by the requested weight in grams, then dividing by 100. Volume inputs are first converted to grams using the food's density (kg/m³) from USDA data, then the same formula applies: fat = (weight_g / 100) × fatPer100g.

Accuracy note: Macro values represent averages across measured samples; individual items may vary ±5–10% depending on brand, farming method, and preparation technique. For clinical nutrition, consult a registered dietitian.

Update policy: Macro values are reviewed quarterly against USDA FoodData Central updates. Page last verified: 2026.

Fat in 100g Butter = 81.1 g | Nutrition

100g of Butter contains 81.1 g of fat. Free converter with serving tables, volume conversion, raw vs cooked, and FAQs. Data from USDA FoodData Central.

Select Food Source

Direction

Amount

Target

fat

81.1g

3.53 oz

Portion: 100gFood fit: 43/100

Serving reality: 3.53 oz, 0.46 cups.

Best benefits

Energy-dense ingredient: Best treated as a measured ingredient because small portions can change calories quickly.

Full micronutrients and nutritional profile

calories

720kcal

protein

0.9g

carbs

0.1g

fat

81g

sodium

0mg

potassium

0mg

magnesium

0mg

caffeine

0mg

Source: USDA FoodData Central reference|generic•Energy density: 1545 kcal/cup

Fat in 100g Butter Calculator

100g of Butter contains 81.1 g of fat. Use the converter above to calculate any weight, volume, or household serving, then compare the tables below. All values from USDA FoodData Central.

Result

100g Butter Fat

81.1 g fat

Computed from 100 g of food and USDA FoodData Central reference.

Reverse Calculation

Fat target to food amount

100 g (3.53 oz, 0.46 cups)

Reverse math uses 81.1 g fat per 100 g from USDA FoodData Central reference.

Butter Macros by Serving Size

Serving	Gram Equivalent	Calories (kcal)	Protein	Carbohydrates	Fat
50 g	50 g	358.5	0.5 g	0.1 g	40.6 g
75 g	75 g	537.8	0.7 g	0.1 g	60.8 g
100 g	100 g	717	0.9 g	0.1 g	81.1 g
150 g	150 g	1075.5	1.4 g	0.2 g	121.7 g
200 g	200 g	1434	1.8 g	0.2 g	162.2 g
250 g	250 g	1792.5	2.3 g	0.3 g	202.8 g

Butter Macros by Common Serving

Serving	Weight	Calories	Protein	Carbs	Fat
Small weighed portion	75 g	538	0.7 g	0.1 g	60.8 g
Standard 100g reference	100 g	717	0.9 g	0.1 g	81.1 g
Large weighed portion	150 g	1076	1.4 g	0.2 g	121.7 g

Butter Fat Range Around 100g

Serving	Gram Equivalent	Fat	Calories
50 g	50 g	40.6 g	359
75 g	75 g	60.8 g	538
100 g	100 g	81.1 g	717
150 g	150 g	121.7 g	1076
200 g	200 g	162.2 g	1434
250 g	250 g	202.8 g	1793

Butter Macros by Volume Measure

Volume Measure	Equivalent Weight	Calories (kcal)	Protein	Carbs	Fat
1 US teaspoon	4.5 g	32.3	0 g	0 g	3.6 g
1 US tablespoon	13.5 g	96.8	0.1 g	0 g	10.9 g
1 US fluid ounce	26.9 g	192.9	0.2 g	0 g	21.8 g
1/4 US cup	53.9 g	386.5	0.5 g	0.1 g	43.7 g
1/3 US cup	71.8 g	514.8	0.6 g	0.1 g	58.2 g
1/2 US cup	107.8 g	772.9	1 g	0.1 g	87.4 g
1 US cup	215.5 g	1545.1	1.9 g	0.2 g	174.8 g
1 US pint	431.1 g	3091	3.9 g	0.4 g	349.6 g
1 US quart	862.1 g	6181.3	7.8 g	0.9 g	699.2 g
1 US gallon	3448.5 g	24725.7	31 g	3.4 g	2796.7 g
100 mL	91.1 g	653.2	0.8 g	0.1 g	73.9 g
1 liter	911 g	6531.9	8.2 g	0.9 g	738.8 g

Butter Prep-State Logging Check

Prep State	Weight	Fat	Concentration
Raw	100 g	81.1 g	81.1 g/100 g
Cooked data not listed	Use cooked USDA entry	Do not infer	Separate cooked record preferred

Butter Nutrient Efficiency Per Calorie

Nutrient	Per 100 g	Per 100 kcal	% Daily Value (per 100 g)
Protein	0.9 g	0.13 g/100 kcal	1.8%
Carbs	0.1 g	0.01 g/100 kcal	0%
Fat	81.1 g	11.31 g/100 kcal	104%

Butter Dietary Profile

Butter is a versatile food suitable for most dietary patterns. Check macros above for your specific dietary requirements.

Butter Benefit Signals

Portion-controlled base: Best value comes from weighing the serving and matching the source prep state. Basis: computed fallback.

Butter Daily Nutrient Coverage

Nutrient	This serving	Reference	Coverage	Signal
Protein	1 g	50 g	2%	Starter contribution
Sodium	0 mg	2300 mg	0%	Low limit contribution
Potassium	0 mg	4700 mg	0%	Starter contribution

Smart Fat Substitutes for Butter

Food	Equivalent portion	Category	Protein delta	Calorie delta	Sodium delta
Olive oil	81 g	Fat	-0.9 g	+0 kcal	+0 mg
Canola oil	81 g	Fat	-0.9 g	+0 kcal	+0 mg
Coconut oil	81 g	Fat	-0.9 g	-18 kcal	+0 mg
Mayonnaise	108 g	Fat	+0.2 g	+19 kcal	+0 mg
Walnuts	124 g	Fat	+18 g	+96 kcal	+0 mg
Cashew Butter	153 g	Fat	+17.6 g	+215 kcal	+451 mg

Butter Condition-Aware Nutrition Notes

Type	Context	Guidance	Basis
mayFit	low sodium goal	May fit low-sodium meal planning at this serving size.	0 mg sodium

Real-World Butter Serving Sizes

Small weighed portion (~75g): 60.8 g fat. Useful when checking a smaller weighed serving.
Standard 100g reference (~100g): 81.1 g fat. Matches the USDA per-100g source basis used on this page.
Large weighed portion (~150g): 121.7 g fat. Useful for larger weighed servings and meal-prep portions.

Common Butter Measurement Mistakes

Mixing raw and cooked entries changes the math. This page uses the listed source record for Butter.
Adding oil, sauces, sweeteners, breading, or drained liquid changes calories and macros beyond the base food values.
For fat tracking, keep the same unit basis across the meal: grams, ounces, cups, or count-based servings should not be mixed without conversion.

Butter Fat — Frequently Asked Questions

How much fat is in 100g of Butter? 100g of Butter contains 81.1 g of fat (USDA FoodData Central). High in fat.

How much fat is in 1 cup of Butter? One US cup of butter weighs approximately 216g (density: 911 kg/m³). That serving contains 175.2 g of fat — computed as 216g ÷ 100 × 81.1.

How many grams of Butter do I need to eat to get 20 g of fat? To reach 20 g of fat from Butter, you need approximately 25g — calculated as (20 ÷ 81.1) × 100 = 25g.

Is Butter high in fat? Yes, Butter is high in fat at 81.1 g per 100g. It ranks among the better sources in its category.

How to Calculate Butter Fat

Weigh raw. Place your butter on a kitchen scale before cooking to get the most accurate starting weight.
Enter weight into the calculator. Select your unit (g, oz, lb, or cup) and hit Calculate.
Read the result. The calculator shows fat content for your exact portion.
Compare servings. Use the serving range table below to quickly compare fat across portion sizes.
Log to your tracker. Enter the raw weight and raw entry in your nutrition app for consistent macro tracking.

Why Volume ≠ Weight: Butter Density Explained

Butter has a medium density (911 kg/m³). A 1-cup measure holds approximately 216 g.

Formula: mass (g) = volume (mL) × density (kg/m³) ÷ 1,000. This calculator uses this formula automatically when you enter a volume measure for Butter.

Butter Page Quality Signals

Source, density, prep-state, serving, and allergen checks used to decide whether this page is safe to promote from generated to indexed.

Data Sources & Methodology

Data source: USDA FoodData Central.

Update policy: Macro values are reviewed quarterly against USDA FoodData Central updates. Page last verified: 2026.

Fat in 100g Butter = 81.1 g | Nutrition

Fat in 100g Butter Calculator

Result

Reverse Calculation

Butter Macros by Serving Size

Butter Macros by Common Serving

Butter Fat Range Around 100g

Butter Macros by Volume Measure

Butter Prep-State Logging Check

Butter Nutrient Efficiency Per Calorie

Butter Dietary Profile

Butter Benefit Signals

Butter Daily Nutrient Coverage

Smart Fat Substitutes for Butter

Butter Condition-Aware Nutrition Notes

Real-World Butter Serving Sizes

Common Butter Measurement Mistakes

Butter Fat — Frequently Asked Questions

How to Calculate Butter Fat

Compare Butter Fat to Similar Foods

More Butter Nutrition Pages

Why Volume ≠ Weight: Butter Density Explained

Butter Page Quality Signals

Data Sources & Methodology

Fat in 100g Butter = 81.1 g | Nutrition

Fat in 100g Butter Calculator

Result

Reverse Calculation

Butter Macros by Serving Size

Butter Macros by Common Serving

Butter Fat Range Around 100g

Butter Macros by Volume Measure

Butter Prep-State Logging Check

Butter Nutrient Efficiency Per Calorie

Butter Dietary Profile

Butter Benefit Signals

Butter Daily Nutrient Coverage

Smart Fat Substitutes for Butter

Butter Condition-Aware Nutrition Notes

Real-World Butter Serving Sizes

Common Butter Measurement Mistakes

Butter Fat — Frequently Asked Questions

How to Calculate Butter Fat

Compare Butter Fat to Similar Foods

More Butter Nutrition Pages

Why Volume ≠ Weight: Butter Density Explained

Butter Page Quality Signals

Data Sources & Methodology