Tablespoon & Teaspoon Converter

About the Tablespoon & Teaspoon Converter

Quickly convert between tablespoons (tbsp), teaspoons (tsp), and milliliters (mL). The key relationships are simple: 1 tablespoon = 3 teaspoons = 14.787 mL. This calculator does the math for any quantity.

Spoon measurements are the most common volume units in cooking and baking recipes. Whether you are halving a recipe, scaling up for a crowd, or converting an international recipe to US measurements, this converter makes it easy.

The converter also shows cup equivalents and fluid ounce values, so you can work easily between all small-volume cooking units.

When This Page Helps

When scaling recipes or converting between US and metric cooking measurements, spoon conversions come up constantly. This calculator prevents common mistakes like confusing tablespoons and teaspoons, which can ruin seasoning or leavening in a recipe.

How to Use the Inputs

1. Enter the number of tablespoons or teaspoons you have.
2. The equivalent in other units appears in the output panel.
3. Use decimal values for half or quarter measurements.
4. Check the mL output for metric recipe conversion.
5. The cup fraction is shown for larger quantities.

Example Calculation

Tips & Best Practices

• Quick rule: 1 tbsp = 3 tsp. So when a recipe says 1 tbsp of salt, that's 3 tsp.
• 4 tablespoons = 1/4 cup, a very common recipe amount.
• For medications, always use the exact mL dosage, not approximate spoon sizes.
• Australian tablespoons are 20 mL (4 tsp), not 15 mL — check your recipe's origin.
• A "dessert spoon" (used in UK/Australia) is about 10 mL, between a tsp and tbsp.

Teaspoon and Tablespoon History

The teaspoon originated as the amount held by a small tea-stirring spoon in 18th century England. The tablespoon was the larger serving spoon. These were standardized in the US to exactly 1/6 and 1/2 fluid ounce respectively, creating the clean 1:3 ratio we use today.

Measurement Precision in Cooking

For salt, spices, and leavening agents (baking powder, baking soda), the difference between a teaspoon and a tablespoon is enormous — three times the amount. Accidentally using a tablespoon of salt instead of a teaspoon will make food inedible. Always double-check your spoon size.

International Spoon Sizes

The US tablespoon (14.787 mL) and the UK/metric tablespoon (15 mL) are nearly identical. The Australian tablespoon (20 mL = 4 tsp) is notably larger. When following Australian recipes (common for pavlova, lamingtons, etc.), be aware of this difference.

Frequently Asked Questions

• How many teaspoons in a tablespoon?

  There are exactly 3 US teaspoons in 1 US tablespoon. This is a defined relationship in the US customary system. So if a recipe calls for 1 tablespoon and you only have teaspoons, use 3 teaspoons.

• How many mL is 1 tablespoon?

  One US tablespoon equals 14.787 mL. This is often rounded to 15 mL for convenience. One US teaspoon equals 4.929 mL, often rounded to 5 mL.

• How many tablespoons in a cup?

  There are 16 US tablespoons in 1 US cup. This means 1 tablespoon = 1/16 cup. Common fractions: 4 tbsp = 1/4 cup, 8 tbsp = 1/2 cup, 12 tbsp = 3/4 cup.

• Are all tablespoons the same size?

  No. A US tablespoon is 14.787 mL (~15 mL). An Australian tablespoon is 20 mL. A UK tablespoon is 15 mL (same as rounded US). Always check which standard your recipe uses, especially for Australian recipes.

• Should I use tablespoon abbreviation tbsp or T?

  Both are used. "tbsp" or "Tbsp" means tablespoon, while "tsp" or "t" means teaspoon. Capital "T" for tablespoon and lowercase "t" for teaspoon is a common convention, but always verify. Mixing these up is a frequent cooking mistake.

• Is a regular eating spoon one tablespoon?

  Not reliably. Eating spoons vary widely in size. A proper measuring tablespoon holds exactly 14.787 mL. An eating tablespoon might hold anywhere from 10 to 20 mL. For accuracy, always use calibrated measuring spoons.