Liquids
Convert teaspoons of buttermilk to grams
One teaspoon of buttermilk weighs about 5.1 g, and half a teaspoon comes to roughly 2.55 g. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 tsp of buttermilk =
5.1 g
- oz
- 0.18
- kg
- 0.0051
- lb
- 0.011
Buttermilk: 245 g per US cup · USDA FoodData Central. Cultured buttermilk is thicker than milk but almost identical in weight per cup.
Full buttermilk chart →Buttermilk at a glance
Every number on this page comes from a single figure: 245 grams per US cup (USDA FoodData Central).
- 1 cup
- 245 g
- 1 tablespoon
- 15.3 g
- 1 teaspoon
- 5.1 g
- 1 cup in ounces
- 8.64 oz
- 100 g in cups
- 0.408 cups
- Density
- 1.04 g/ml
teaspoons to grams chart for buttermilk
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Teaspoons (US) | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 1/4 tsp | 1.28 g | 0.045 oz | 0.0028 lb |
| 1/2 tsp | 2.55 g | 0.09 oz | 0.0056 lb |
| 3/4 tsp | 3.83 g | 0.135 oz | 0.0084 lb |
| 1 tsp | 5.1 g | 0.18 oz | 0.011 lb |
| 1 1/2 tsp | 7.66 g | 0.27 oz | 0.017 lb |
| 2 tsp | 10.2 g | 0.36 oz | 0.023 lb |
| 3 tsp | 15.3 g | 0.54 oz | 0.034 lb |
| 4 tsp | 20.4 g | 0.72 oz | 0.045 lb |
| 6 tsp | 30.6 g | 1.08 oz | 0.068 lb |
| 8 tsp | 40.8 g | 1.44 oz | 0.09 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat buttermilk as 245 g per US customary cup, which works out to 1.036 g/ml. From there:
- Your teaspoons figure is converted into millilitres or grams using standard unit sizes (tsp = 4.93 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 3/8 cups.
Measuring buttermilk accurately
Cultured buttermilk is thicker than milk but almost identical in weight per cup.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many grams are in 1 teaspoon of buttermilk?
1 teaspoon of buttermilk is 5.1 g. This is based on a density of 245 g per US cup.
How many grams are in 2 teaspoons of buttermilk?
2 teaspoons of buttermilk is 10.2 g, and 2.55 g for half a teaspoon.
How much is 100 g of buttermilk in cups?
100 g of buttermilk is about 3/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for buttermilk?
Cultured buttermilk is thicker than milk but almost identical in weight per cup.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.