Convert Baking Soda (Bicarb) from Teaspoon to Cup (US)

How many US cups is 1 teaspoon of baking soda (bicarb)?

1 teaspoon of baking soda (bicarb) is 0.02 US cups. 2 teaspoons of baking soda (bicarb) is 0.04 US cups. 1/2 teaspoon of baking soda (bicarb) is 0.01 US cups. 1/4 teaspoon (0.25 teaspoon) of baking soda (bicarb) 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 soda (bicarb) 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 soda, also known as sodium bicarbonate, is a versatile leavening agent used in baking. When combined with acidic ingredients like yoghurt, lemon juice, or vinegar, it produces carbon dioxide gas, which helps dough and batter rise. Baking soda is commonly used in recipes for cookies, cakes, and quick breads.

Baking soda is roughly three times stronger than baking powder, so even a small over-measure can leave a soapy, metallic taste. Measuring by weight rather than volume gives you more consistent results. Use the converter below for grams, cups, teaspoons, and more.

Also known as

  • Sodium Bicarbonate
  • Bicarbonate of Soda
  • Bicarb
  • Bread Soda
  • Cooking Soda
  • Saleratus

Related Baking Soda (Bicarb) Ingredients

Baking powder is baking soda already blended with a dry acid and a starch, so it is milder and acts on its own without extra acidic ingredients. To swap baking soda for baking powder, use roughly three times as much and drop any added acid from the recipe. See what 1 teaspoon of baking powder is in US cups.

Cream of tartar is the acid that pairs with baking soda to replace baking powder. Use the cream of tartar converter for teaspoon and gram conversions. See what 1 teaspoon of cream of tartar is in US cups.

Out of baking soda (bicarb)? See baking soda (bicarb) substitutes →

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

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Baking Soda (Bicarb) Measurement Converter

Enter a value and pick your units.

Result

0.02 Cup (US)

Baking Soda (Bicarb) Calculators & Baking Tools

Working with baking soda (bicarb)? These tools handle the jobs a converter cannot.

Common Baking Soda (Bicarb) Conversions

Here are the most common baking soda (bicarb) 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 Soda (Bicarb) Conversion Chart

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

tspcup(US)cupgramsouncestbsppinch
1 tsp0.02 cup (US)0.02 cup4.4 g0.14 oz0.33 tbsp16 pinch
2 tsp0.04 cup (US)0.04 cup8.8 g0.28 oz0.67 tbsp32 pinch
3 tsp0.06 cup (US)0.06 cup13.2 g0.42 oz1 tbsp48 pinch
4 tsp0.08 cup (US)0.08 cup17.6 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

How many US cups is 1 teaspoon of baking soda (bicarb)?
1 teaspoon of baking soda (bicarb) is 0.02 US cups. The ratio is fixed, so 2 teaspoons of baking soda (bicarb) 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 soda (bicarb) converter
How many US cups is 1.5 teaspoons of baking soda (bicarb)?
1.5 teaspoons of baking soda (bicarb) is 0.03 US cups. The ratio is fixed, so 1 teaspoon of baking soda (bicarb) 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.
How many US cups is 2 teaspoons of baking soda (bicarb)?
2 teaspoons of baking soda (bicarb) 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 soda (bicarb) 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 soda (bicarb) is 0.02 US cups?
0.02 US cups of baking soda (bicarb) 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.
Are baking soda (bicarb) and Sodium Bicarbonate the same thing?
Yes. Sodium Bicarbonate is another name for baking soda (bicarb), so they are the same ingredient and convert identically. 1 teaspoon of baking soda (bicarb) is 0.02 US cups under either name, and 2 teaspoons is 0.04 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
What is 1/2 tsp baking soda (bicarb) in US cups?
1/2 teaspoon of baking soda (bicarb) is 0.01 US cups. The ratio is fixed, so 1 teaspoon of baking soda (bicarb) 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 soda (bicarb) in US cups?
1/4 teaspoon (0.25 teaspoon) of baking soda (bicarb) is 0.01 US cups. The ratio is fixed, so 1 teaspoon of baking soda (bicarb) 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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