Convert Baking Powder from Teaspoon to Cup (US)

How many US cups is 1 teaspoon of baking powder?

1 teaspoon of baking powder is 0.02 US cups. 2 teaspoons of baking powder is 0.04 US cups. 1/2 teaspoon of baking powder is 0.01 US cups. 1/4 teaspoon (0.25 teaspoon) of baking powder is 0.01 US cups. Use the converter below for any amount.

  • These figures use the US cup (240 ml). A metric cup is slightly larger at 250 ml, so it holds a little more. Use the metric 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 →
  • With a leavener like baking powder this matters: a teaspoon is a small amount and the chemistry is unforgiving. Too much and the bake domes, cracks, then sinks with a soapy tang. Too little and it stays dense. Use a real measuring spoon and level the top.

Baking powder is a leavening agent commonly used in baking to help dough and batter rise. It typically consists of a combination of an acid (like cream of tartar), a base (like baking soda), and a moisture absorber (like cornstarch). When mixed with wet ingredients, it produces carbon dioxide gas, which creates bubbles that cause the mixture to expand and become light and fluffy.

Baking powder is used in small amounts (usually 1–2 teaspoons per recipe) and even a slight excess can make baked goods taste bitter or collapse after rising. Measuring by weight is the most reliable way to get it right. Use the converter below for grams, cups, teaspoons, and more.

Related Baking Powder Ingredients

Baking soda (bicarb) is the pure alkali inside baking powder, with no built-in acid, so it is roughly three times stronger. They are not a 1:1 swap: to replace baking powder with baking soda you need to add an acid such as cream of tartar, and use about a third of the amount. See what 1 teaspoon of baking soda (bicarb) is in US cups.

Cream of tartar is the dry acid inside baking powder. Use the cream of tartar converter for teaspoon and gram conversions when pairing it with baking soda. See what 1 teaspoon of cream of tartar is in US cups.

Out of baking powder? See baking powder substitutes →

No measuring spoons? The tool below gets you close, and a measuring spoon set keeps small amounts accurate.

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Baking Powder Measurement Converter

Enter a value and pick your units.

Result

0.02 Cup (US)

Baking Powder Calculators & Baking Tools

Working with baking powder? These tools handle the jobs a converter cannot.

Common Baking Powder Conversions

Here are the most common baking powder conversions from teaspoons to cups (US).

TeaspoonsCups (US)
0.25 tsp0.01 cups (US)
0.5 tsp0.01 cups (US)
1 tsp0.02 cups (US)
2 tsp0.04 cups (US)
3 tsp0.06 cups (US)
4 tsp0.08 cups (US)
6 tsp0.13 cups (US)
8 tsp0.17 cups (US)
12 tsp0.25 cups (US)

Baking Powder Conversion Chart

The conversion chart below gives a quick reference for converting baking powder from Teaspoon to Cup (US) and other measurements.

tspcup(US)cupgramsouncestbsppinch
1 tsp0.02 cup (US)0.02 cup4 g0.14 oz0.33 tbsp16 pinch
2 tsp0.04 cup (US)0.04 cup8 g0.28 oz0.67 tbsp32 pinch
3 tsp0.06 cup (US)0.06 cup12 g0.42 oz1 tbsp48 pinch
4 tsp0.08 cup (US)0.08 cup16 g0.56 oz1.33 tbsp64 pinch

This is a volume conversion, so the result is the same for every ingredient. Use the teaspoons to cups (US) volume converter to switch between cups, tablespoons, teaspoons, and millilitres without weighing.

Frequently Asked Questions

What is 1 teaspoon of baking powder in US cups?
1 teaspoon of baking powder is 0.02 US cups. The ratio is fixed, so 2 teaspoons of baking powder is 0.04 US cups and 0.5 teaspoons is 0.01 US 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 baking powder converter
How many US cups is 1.5 teaspoons of baking powder?
1.5 teaspoons of baking powder is 0.03 US cups. The ratio is fixed, so 1 teaspoon of baking powder is 0.02 US cups and 2 teaspoons is 0.04 US cups. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
What is 2 teaspoons of baking powder in US cups?
2 teaspoons of baking powder is 0.04 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 teaspoon of baking powder is 0.02 US 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 US cups reading.
How many teaspoons of baking powder is 0.02 US cups?
0.02 US cups of baking powder is 0.96 teaspoons. The conversion works the same in reverse, so you can switch between US cups and teaspoons without changing the result. This helps when a recipe lists teaspoons but you would rather weigh or measure in US cups. The converter above and the chart below cover both directions for any amount.
What is 1/2 tsp baking powder in US cups?
1/2 teaspoon of baking powder is 0.01 US cups. The ratio is fixed, so 1 teaspoon of baking powder is 0.02 US cups and 2 teaspoons is 0.04 US 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.
What is 1/4 tsp baking powder in US cups?
1/4 teaspoon (0.25 teaspoon) of baking powder is 0.01 US cups. The ratio is fixed, so 1 teaspoon of baking powder is 0.02 US cups and 2 teaspoons is 0.04 US cups. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

Other Ingredients

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