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Cream of tartar — Teaspoons to Grams

One teaspoon of cream of tartar weighs about 3 grams, and one tablespoon is about 9 grams. Cream of tartar is used by the teaspoon — about 3 grams each. Use the converter below to switch cream of tartar between teaspoons, tablespoons, grams, ounces and more.

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Cream of tartar conversion chart

Cream of tartar conversion chart
Amount	Grams	Ounces
⅛ tsp	0.375 g	0.013 oz
¼ tsp	0.75 g	0.026 oz
½ tsp	1.5 g	0.053 oz
¾ tsp	2.25 g	0.079 oz
1 tsp	3 g	0.106 oz
1 tbsp	9 g	0.317 oz
2 tbsp	18 g	0.635 oz
¼ cup	36 g	1.27 oz

How to measure cream of tartar

Cream of tartar is used by the teaspoon — about 3 grams each.

Because a cup measures volume rather than weight, the most reliable way to measure cream of tartar is with a digital kitchen scale. If you are working from cups, keep your technique consistent every time so your results are repeatable. For more, see our guide on baking by weight versus volume.

No scale yet? You don't need a fancy one; any digital kitchen scale that reads in 1-gram steps does everything on this site. Well-rated kitchen scales on Amazon →

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Substitutes for cream of tartar

For stabilizing whipped egg whites: ⅛–¼ tsp lemon juice per egg white (King Arthur Baking)
Adds the same acid that keeps meringues stable; barely tastes through the bake.

See all cream of tartar substitutes, ratios and sources →

Cream of tartar conversions: FAQ

Why doesn't a teaspoon of cream of tartar weigh the same as a teaspoon of water?

A teaspoon measures volume, not weight. Cream of tartar is less dense than water (about 3 g versus 4.9 g per teaspoon), so the same volume has a different weight. Weighing in grams is the most accurate way to measure it.

Common cream of tartar conversions

Quick-answer pages for the conversions people search for most.

¼ tsp to grams

¼ teaspoon cream of tartar ≈ 0.75 g

½ tsp to grams

½ teaspoon cream of tartar ≈ 1.5 g

1 tsp to grams

1 teaspoon cream of tartar ≈ 3 g

2 tsp to grams

2 teaspoons cream of tartar ≈ 6 g

½ tbsp to grams

½ tablespoon cream of tartar ≈ 4.5 g

1 tbsp to grams

1 tablespoon cream of tartar ≈ 9 g

2 tbsp to grams

2 tablespoons cream of tartar ≈ 18 g

3 tbsp to grams

3 tablespoons cream of tartar ≈ 27 g

Related converters

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* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.