Buttermilk vs Milk
Density, calorie, and weight differences — and whether they can substitute for each other.
Substitution Verdict
Density difference: 0%. Very similar — 1:1 substitution is usually safe.
Calories per 100 g: Buttermilk 40 kcal vs Milk 61 kcal. Difference: 21 kcal — Milk is higher.
Weight Conversions (per Spoon and Cup)
| Measure | Buttermilk | Milk |
|---|---|---|
| 1 tablespoon | 15.5 g | 15.5 g |
| 1 teaspoon | 5.2 g | 5.2 g |
| 1 cup | 245 g | 245 g |
| Density | 1.03 g/ml | 1.03 g/ml |
Measuring Tips
DIY substitute: 1 cup milk + 1 tbsp lemon juice or white vinegar, let sit 5 min until curdled.
Volume measurements (cups, ml) are most accurate for liquids. Read meniscus at eye level.
Frequently Asked Questions
Can Buttermilk be substituted for Milk?▾
Very similar — 1:1 substitution is usually safe. Density of Buttermilk is 1.03 g/ml; Milk is 1.03 g/ml — a 0% difference. But flavor, moisture, and chemistry can still differ — verify suitability for the specific recipe.
How many grams in 1 tablespoon of Buttermilk vs Milk?▾
1 tbsp Buttermilk ≈ 15.5 g. 1 tbsp Milk ≈ 15.5 g. By weight: 1 tbsp Buttermilk = 1.00 tbsp Milk.
Which has more calories, Buttermilk or Milk?▾
Per 100 g: Buttermilk 40 kcal, Milk 61 kcal. Milk has 21 more kcal.
What is Buttermilk typically used for?▾
Buttermilk is commonly used in: pancakes, biscuits, fried chicken marinade, cakes. Source: usda-fdc.
What is Milk typically used for?▾
Milk is commonly used in: drinking, baking, sauces, coffee. Source: usda-fdc.