KitchenWeightCalc
Tools

1 Tablespoon Cultured Buttermilk = 15.1g

1 Tablespoon of cultured buttermilk weighs 15.1 grams (0.53 ounces or 0.03 pounds; 14.8 mL or 1 tablespoon in volume) when measured poured liquid at a verified bulk density of 242g per 236.6 mL US Customary cup.

Imperial weight: 0.53 oz (0.03 lb) • Volume: 14.8 mL (1 tbsp)

Batch
Measuring density
Converted Measure
1 tbsp Cultured Buttermilk (poured liquid) =
15.1 g
Physical scoop breakdown0.06 cups
1 tbsp
Edit either side to reverseButtermilk chart →
Grams
15.1 g
Ounces
0.53 oz
US Cups
1 tbsp
Metric (250mL)
0.06 c
Tablespoons
1 tbsp
Milliliters
14.8 mL

Kitchen note: Test-kitchen baseline uses poured liquid (242g/cup). Switching to vigorously shaken cultured buttermilk (242g/cup) changes each cup by 0g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around 1 Tablespoon Cultured Buttermilk

Batch scaling conversion table around 1 Tablespoon of Cultured Buttermilk (0.5× to 3× recipe batches in grams, ounces, US cups, and milliliters)
Batch Scale Weight (g / oz) US Cups & Spoons Metric (mL)
Half Batch (0.5×) 7.6g (0.27 oz) 1 ½ tsp 7.4 mL
Standard (1×) 15.1g (0.53 oz) 1 tbsp 14.8 mL
1.5× Batch 22.7g (0.8 oz) 1 tbsp + 1 ½ tsp 22.2 mL
Double Batch (2×) 30.3g (1.07 oz) ⅛ cup 29.6 mL
Triple Batch (3×) 45.4g (1.6 oz) 3 tbsp 44.4 mL

Measuring 1 Tablespoon of Cultured Buttermilk in the Kitchen

Measured poured liquid at a verified bulk density of 242g per US cup, 1 tablespoon of cultured buttermilk weighs 15.1 grams (0.53 ounces). Measured using the vigorously shaken cultured buttermilk method (242g/cup), that same 1 tbsp holds 15.1g — virtually identical weight in your mixing bowl.

Shake container vigorously before pouring to reconstitute settled cultured curds into a creamy fluid.

Source note: USDA FoodData Central #171271 & King Arthur standard (242g/cup)

Frequently Asked Questions

How many grams is 1 tbsp of cultured buttermilk? ▾

1 Tablespoon of cultured buttermilk measured poured liquid weighs 15.1 grams (0.53 ounces).

Why does buttermilk produce exceptionally tender baked goods? ▾

Lactic acid weakens gluten networks and reacts vigorously with alkaline baking soda, generating carbon dioxide lift and a soft crumb.

Can you freeze leftover buttermilk for future baking? ▾

Yes, freeze in 1/2-cup portions or ice cube trays; thaw and whisk to blend before mixing into batters.