Convert Buttermilk measurements

Buttermilk Measurement Converter

Use the tool below to convert buttermilk from the measurements in your recipe to the measurements that you need.

Buttermilk is a tangy, slightly acidic dairy liquid used in pancakes, cakes, quick breads, and marinades. One metric cup (250 ml) weighs 255 g (8.99 oz). Despite its name, it contains very little butter: modern buttermilk is made by culturing low-fat milk with bacterial cultures.

Recipes often call for buttermilk by volume, but measuring by weight gives more consistent results, especially when scaling. This page converts buttermilk between grams, cups, millilitres, fluid ounces, and more.

Also known as

cultured buttermilk
sour milk

Buttermilk Calculator

Out of buttermilk? Calculate the exact milk plus lemon juice or white vinegar to mix as a substitute.

Buttermilk Substitute Calculator

Milk is thinner and less acidic than buttermilk. To substitute, stir 1 tablespoon of lemon juice or white vinegar into 1 cup of milk, then let it sit for a few minutes until it curdles slightly. See our Milk converter.

Lemon juice stirred into regular milk makes a quick buttermilk substitute. Use 1 tablespoon of lemon juice per 1 cup of milk, stir, and let it curdle for a few minutes before using. See our Lemon Juice converter.

Plain yoghurt is thicker than buttermilk but shares the tang and acidity. To use yoghurt in place of buttermilk, stir 2 to 3 tablespoons of milk into 1 cup of yoghurt to match the pourable texture. See our Plain Yoghurt converter.

Sour cream is thick and spoonable, while buttermilk is thin and pourable. To use sour cream in place of buttermilk, thin it with milk in a 3:1 ratio until pourable; the tang and acidity stay close. See our Sour Cream converter.

Out of buttermilk? See buttermilk substitutes →

Baking a cake? The tool below sorts your measurements. To mix the batter, a hand mixer does the heavy lifting.

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Common Buttermilk Conversions

Here are the most common buttermilk conversions from grams to cups.

Grams	Cups
50 g	0.2 cups
100 g	0.39 cups
125 g	0.49 cups
150 g	0.59 cups
175 g	0.69 cups
200 g	0.78 cups
250 g	0.98 cups
255 g	1 cup
300 g	1.18 cups
400 g	1.57 cups
500 g	1.96 cups
510 g	2 cups

Buttermilk Conversion Chart

The conversion chart below gives a quick reference for converting buttermilk to different measurements.

grams	cup	ounces	cup(US)	tbsp	tsp	ml	fl oz
100 g	0.39 cup	3.53 oz	0.41 cup (US)	6.54 tbsp	19.61 tsp	98.04 ml	3.32 fl oz
150 g	0.59 cup	5.29 oz	0.61 cup (US)	9.8 tbsp	29.41 tsp	147.06 ml	4.97 fl oz
250 g	0.98 cup	8.81 oz	1.02 cup (US)	16.34 tbsp	49.02 tsp	245.1 ml	8.29 fl oz
500 g	1.96 cup	17.63 oz	2.04 cup (US)	32.68 tbsp	98.04 tsp	490.2 ml	16.58 fl oz
750 g	2.94 cup	26.44 oz	3.06 cup (US)	49.02 tbsp	147.06 tsp	735.29 ml	24.86 fl oz

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