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

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

1 tablespoon of baking soda (bicarb) (Sodium Bicarbonate) is 0.06 US cups. 2 tablespoons of baking soda (bicarb) is 0.13 US cups. 1/2 tablespoon of baking soda (bicarb) is 0.03 US cups. 1/4 tablespoon (0.25 tablespoon) of baking soda (bicarb) is 0.02 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 tablespoon here is the 15 ml metric standard, about 16.67 to a metric cup, the same size as a UK tablespoon. A US tablespoon is smaller at 14.79 ml, so US cooks measuring with US spoons need slightly more. An Australian tablespoon is larger at 20 ml, so it holds about a third more. When tablespoon size matters →
  • With a leavener like baking soda (bicarb) this matters: a tablespoon 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

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 our Baking Powder converter.

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 our Cream of Tartar converter.

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.

Baking Soda (Bicarb) Measurement Converter

Enter a value and pick your units.

Result

0 Cup (US)

Common Baking Soda (Bicarb) Conversions

Here are the most common baking soda (bicarb) conversions from tablespoons to cups (US).

TablespoonsCups (US)
1 tbsp0.06 cups (US)
2 tbsp0.13 cups (US)
3 tbsp0.19 cups (US)
4 tbsp0.25 cups (US)
6 tbsp0.38 cups (US)
8 tbsp0.5 cups (US)
10 tbsp0.63 cups (US)
12 tbsp0.75 cups (US)
16 tbsp1 cup (US)

Baking Soda (Bicarb) Conversion Chart

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

tbspcup(US)cupgramsouncestsp
1 tbsp0.06 cup (US)0.06 cup13.2 g0.42 oz3 tsp
2 tbsp0.13 cup (US)0.12 cup26.4 g0.84 oz6 tsp
3 tbsp0.19 cup (US)0.18 cup39.6 g1.26 oz9 tsp
4 tbsp0.25 cup (US)0.24 cup52.8 g1.68 oz12 tsp

Frequently Asked Questions

How many US cups is 1 tablespoon of baking soda (bicarb)?
1 tablespoon of baking soda (bicarb) is 0.06 US cups. The ratio is fixed, so 2 tablespoons of baking soda (bicarb) is 0.13 US cups and 0.5 tablespoons is 0.03 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 tablespoons of baking soda (bicarb)?
1.5 tablespoons of baking soda (bicarb) is 0.09 US cups. The ratio is fixed, so 1 tablespoon of baking soda (bicarb) is 0.06 US cups and 2 tablespoons is 0.13 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 tablespoons of baking soda (bicarb)?
2 tablespoons of baking soda (bicarb) is 0.13 US cups. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 tablespoon of baking soda (bicarb) is 0.06 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 tablespoons of baking soda (bicarb) is 0.06 US cups?
0.06 US cups of baking soda (bicarb) is 0.96 tablespoons. The conversion works the same in reverse, so you can switch between US cups and tablespoons without changing the result. This helps when a recipe lists tablespoons but you would rather weigh or measure in US cups. The converter above and the chart below cover both directions for any amount.
How many US cups is 1 tablespoon of Sodium Bicarbonate?
Sodium Bicarbonate is another name for baking soda (bicarb), so 1 tablespoon of Sodium Bicarbonate is 0.06 US cups, exactly the same as baking soda (bicarb). The figure does not change with the name: 2 tablespoons is 0.13 US cups and 0.5 tablespoons is 0.03 US cups. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
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 tablespoon of baking soda (bicarb) is 0.06 US cups under either name, and 2 tablespoons is 0.13 US cups. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.

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