Convert Cream of Tartar from Teaspoon to Cup

How many cups is 1 teaspoon of cream of tartar?

1 teaspoon of cream of tartar (potassium bitartrate) is 0.02 cups. 2 teaspoons of cream of tartar is 0.04 cups. 1/2 teaspoon of cream of tartar is 0.01 cups. Use the converter below for any amount.

  • These figures use the metric cup (250 ml). A US cup is slightly smaller at 240 ml, so it holds a little less. Use the US cup converter →
  • Cup sizes are not standard worldwide, so the same cup of an ingredient can weigh more or less depending on the country. What is a cup measurement →
  • A teaspoon here is the 5 ml standard, the same in the UK, Europe, and Australia. A US teaspoon is fractionally smaller at about 4.9 ml. When teaspoon size matters →
  • A little over or under won't ruin the bake, though it can nudge the final taste or colour.

Cream of tartar is a fine white powder left behind in wine barrels during fermentation, used in baking to stabilise egg whites, prevent sugar crystallisation, and activate baking soda. One metric cup (250 ml) of cream of tartar weighs around 200 grams or 7.05 ounces. Most recipes call for it by the teaspoon, where 1 tsp weighs about 4 grams.

Cream of tartar is potent in small amounts. Even a quarter teaspoon makes a measurable difference to a meringue. Measuring by weight avoids the over-packing that comes with scooping, keeping results consistent.

Also known as

  • potassium bitartrate
  • potassium hydrogen tartrate

Baking powder contains cream of tartar as its acid component. If a recipe uses cream of tartar and baking soda together as a leavening pair, use the baking powder converter to find the right replacement amount. See our Baking Powder converter.

Cream of tartar is often paired with baking soda to create a leavening reaction. The baking soda converter covers gram and teaspoon conversions for the other half of the duo. See our Baking Soda converter.

Out of cream of tartar? See cream of tartar substitutes →

No measuring cups? The tool below gets you close. For consistent results, grab a measuring cup set.

Cream of Tartar Measurement Converter

Enter a value and pick your units.

Result

0 Cup

Common Cream of Tartar Conversions

Here are the most common cream of tartar conversions from teaspoons to cups.

TeaspoonsCups
0.25 tsp0.01 cups
0.5 tsp0.01 cups
1 tsp0.02 cups
2 tsp0.04 cups
3 tsp0.06 cups
4 tsp0.08 cups
6 tsp0.12 cups
8 tsp0.16 cups
12 tsp0.24 cups

Cream of Tartar Conversion Chart

The conversion chart below gives a quick reference for converting cream of tartar from Teaspoon to Cup and other measurements.

tspcupgramsouncescup(US)tbsp
1 tsp0.02 cup4 g0.14 oz0.02 cup (US)0.33 tbsp
2 tsp0.04 cup8 g0.28 oz0.04 cup (US)0.67 tbsp
3 tsp0.06 cup12 g0.42 oz0.06 cup (US)1 tbsp
4 tsp0.08 cup16 g0.56 oz0.08 cup (US)1.33 tbsp

Frequently Asked Questions

How many cups is 1 teaspoon of cream of tartar?
1 teaspoon of cream of tartar is 0.02 cups. The ratio is fixed, so 2 teaspoons of cream of tartar is 0.04 cups and 0.5 teaspoons is 0.01 cups. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the cream of tartar converter
How many cups is 1.5 teaspoons of cream of tartar?
1.5 teaspoons of cream of tartar is 0.03 cups. The ratio is fixed, so 1 teaspoon of cream of tartar is 0.02 cups and 2 teaspoons is 0.04 cups. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many cups is 2 teaspoons of cream of tartar?
2 teaspoons of cream of tartar is 0.04 cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 teaspoon of cream of tartar is 0.02 cups, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact cups reading.
How many teaspoons of cream of tartar is 0.02 cups?
0.02 cups of cream of tartar is 1 teaspoon. The conversion works the same in reverse, so you can switch between cups and teaspoons without changing the result. This helps when a recipe lists teaspoons but you would rather weigh or measure in cups. The converter above and the chart below cover both directions for any amount.
How many cups is 1 teaspoon of potassium bitartrate?
Potassium bitartrate is another name for cream of tartar, so 1 teaspoon of potassium bitartrate is 0.02 cups, exactly the same as cream of tartar. The figure does not change with the name: 2 teaspoons is 0.04 cups and 0.5 teaspoons is 0.01 cups. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are cream of tartar and potassium bitartrate the same thing?
Yes. Potassium bitartrate is another name for cream of tartar, so they are the same ingredient and convert identically. 1 teaspoon of cream of tartar is 0.02 cups under either name, and 2 teaspoons is 0.04 cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
How many cups is 1/2 teaspoon of cream of tartar?
1/2 teaspoon of cream of tartar is 0.01 cups. The ratio is fixed, so 1 teaspoon of cream of tartar is 0.02 cups and 2 teaspoons is 0.04 cups. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.

Other Ingredients

If you need help with any other ingredients click below: