Buttermilk
US Tablespoon to Gram
US Cup (236ml)
243.7g
Metric Cup (250ml)
257.5g
A US cup (236.59ml) of buttermilk weighs 244g, while a metric cup (250ml) weighs 258g. That's a 5.7% difference - make sure you know which cup size your recipe uses!
Buttermilk — Quick Reference
Common us tablespoon to gram conversions
| US Tablespoon | Gram |
|---|---|
| ½ tbsp | 8g |
| 1 tbsp | 15g |
| 2 tbsp | 30g |
| 3 tbsp | 46g |
| 4 tbsp | 61g |
| 5 tbsp | 76g |
| 6 tbsp | 91g |
Based on buttermilk density of 1.03 g/ml (poured method). Source: USDA FoodData Central.
Understanding Buttermilk Conversions
The Math Behind This Conversion
To convert 1 us tablespoon of buttermilk to gram, we use the density of buttermilk (1.03 g/ml). A us tablespoon contains 14.79ml, so 1 us tablespoon equals 14.79ml. Multiplying by the density: 14.79ml × 1.03 g/ml = 15.2g.
US vs Metric Cups: Why It Matters
When converting buttermilk, the cup size matters significantly. A US cup (236.6ml) of buttermilk weighs 244g, while a metric cup (250ml) weighs 258g—a difference of 14g (6%). If you're following a recipe from a different country, using the wrong cup size could affect your results. American recipes use US cups, while recipes from Australia, UK, and most other countries use metric cups.
Measurement Tip
For room-temperature recipes, let buttermilk sit out for 15-20 minutes before measuring. Cold buttermilk is slightly denser than room-temperature buttermilk, which can affect very precise recipes. Our density of 1.03 g/ml is based on refrigerated buttermilk.
About Our Data
The density value of 1.03 g/ml for buttermilk is from the USDA FoodData Central database (ID: 170116). This measurement was taken with buttermilk poured into the measuring cup.