Convert Cream of Tartar from Cup (US) to Ounces

How many ounces is 1 US cup of cream of tartar?

1 US cup of cream of tartar (potassium bitartrate) is 6.77 ounces. 2 US cups of cream of tartar is 13.54 ounces. 1/2 US cup of cream of tartar is 3.38 ounces. Use the converter below for any amount.

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 Ounces

Common Cream of Tartar Conversions

Here are the most common cream of tartar conversions from cups (US) to ounces.

Cups (US)Ounces
0.25 cups (US)1.69 oz
0.5 cups (US)3.38 oz
0.75 cups (US)5.08 oz
1 cup (US)6.77 oz
1.25 cups (US)8.46 oz
1.5 cups (US)10.15 oz
2 cups (US)13.54 oz
2.5 cups (US)16.92 oz
3 cups (US)20.3 oz

Cream of Tartar Conversion Chart

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

cup(US)ouncescupgramstbsptsp
0.25 cup (US)1.69 oz0.24 cup48 g4 tbsp12 tsp
0.5 cup (US)3.38 oz0.48 cup96 g8 tbsp24 tsp
1 cup (US)6.77 oz0.96 cup192 g16 tbsp48 tsp
2 cup (US)13.54 oz1.92 cup384 g32 tbsp96 tsp

Frequently Asked Questions

How many ounces is 1 US cup of cream of tartar?
1 US cup of cream of tartar is 6.77 ounces. The ratio is fixed, so 2 US cups of cream of tartar is 13.54 ounces and 0.5 US cups is 3.38 ounces. 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 ounces is 1.5 US cups of cream of tartar?
1.5 US cups of cream of tartar is 10.15 ounces. The ratio is fixed, so 1 US cup of cream of tartar is 6.77 ounces and 2 US cups is 13.54 ounces. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many ounces is 2 US cups of cream of tartar?
2 US cups of cream of tartar is 13.54 ounces. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 US cup of cream of tartar is 6.77 ounces, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact ounces reading.
How many US cups of cream of tartar is 6.77 ounces?
6.77 ounces of cream of tartar is 1 US cup. The conversion works the same in reverse, so you can switch between ounces and US cups without changing the result. This helps when a recipe lists US cups but you would rather weigh or measure in ounces. The converter above and the chart below cover both directions for any amount.
How many ounces is 1 US cup of potassium bitartrate?
Potassium bitartrate is another name for cream of tartar, so 1 US cup of potassium bitartrate is 6.77 ounces, exactly the same as cream of tartar. The figure does not change with the name: 2 US cups is 13.54 ounces and 0.5 US cups is 3.38 ounces. 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 US cup of cream of tartar is 6.77 ounces under either name, and 2 US cups is 13.54 ounces. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.

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