Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 tsp | 0.000333332 tbsp | |
| 0.01 tsp | 0.00333332 tbsp | |
| 0.1 tsp | 0.0333332 tbsp | |
| 1 tsp | 0.333332 tbsp | |
| 5 tsp | 1.66666 tbsp | |
| 10 tsp | 3.33332 tbsp | |
| 50 tsp | 16.6666 tbsp | |
| 100 tsp | 33.3332 tbsp | |
| 1000 tsp | 333.332 tbsp |
Common teaspoon values converted to tablespoon — factor: 1 tsp = 0.3333 tbsp
| Teaspoon (tsp) | Tablespoon (tbsp) | Context |
|---|---|---|
| 0.25 tsp | 0.08333 tbsp | Pinch |
| 0.5 tsp | 0.1667 tbsp | Half teaspoon |
| 1 tsp | 0.3333 tbsp | Teaspoon |
| 2 tsp | 0.6667 tbsp | Two teaspoons |
| 3 tsp | 1 tbsp | Tablespoon |
| 6 tsp | 2 tbsp | 2 tablespoons |
| 12 tsp | 4 tbsp | Quarter cup |
| 24 tsp | 8 tbsp | Half cup |
| 48 tsp | 16 tbsp | One cup |
| 96 tsp | 32 tbsp | One pint |
| 192 tsp | 64 tbsp | One quart |
| 384 tsp | 128 tbsp | Half gallon |
| 768 tsp | 256 tbsp | One gallon |
| 1,536 tsp | 512 tbsp | 2 gallons |
| 3,840 tsp | 1,280 tbsp | 5 gallons |
Converting teaspoon to tablespoon comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using tablespoon, or a laboratory protocol may specify volumes in teaspoon that need to be measured with equipment calibrated in tablespoon.
In everyday use, knowing that 5 tsp = 1.667 tbsp and 10 tsp = 3.333 tbsp covers most common situations. For bulk calculations, 100 tsp = 33.33 tbsp is a useful anchor. The reverse conversion — tablespoon back to teaspoon — uses the factor 3, so 1 tbsp = 3 tsp.
All conversions use the internationally recognized factor of exactly 1 tsp = 0.3333 tbsp. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.
Formula: Tablespoon = Teaspoon × 0.33333243
Multiply any teaspoon value by 0.33333243 to get tablespoon. One teaspoon equals 0.33333243 tbsp.
Reverse: Teaspoon = Tablespoon × 3.0000081
Teaspoons ÷ 3 = tablespoons. Three teaspoons = one tablespoon.
3 tsp = 1 tbsp = ½ fl oz = 15 mL.
Tablespoons × 3 = teaspoons.
Measures baking powder, baking soda, salt, and spices in teaspoons, the backbone of baking.
Administers children's liquid medicine in teaspoon doses as per OTC label instructions.
Tests flavor compound thresholds using teaspoon additions in sensory evaluation panels.
Adds clarifying agents and pH adjusters in teaspoon quantities to fermentation batches.
Formulates serums and toners using teaspoon measurements for small test batches.
Doses water conditioners and fertilizers in teaspoons for planted tanks and reef systems.
The US teaspoon is exactly one-third of a tablespoon, 4.92892 mL. It was standardized in the US in the early 20th century partly to address inconsistent home medication dosing.
Teaspoons are the smallest standard cooking measure in the US system, used for spices, leaveners, and flavorings. A medical teaspoon dose conventionally means 5 mL.
Interesting fact: The teaspoon is behind one of science's most cited comparisons: the entire Pacific Ocean would fill roughly 7.1 × 10²³ teaspoons.
The US tablespoon is defined as exactly 3 teaspoons or ½ fluid ounce, approximately 14.787 mL. Standardization arrived in the late 19th century alongside modern recipe writing.
Tablespoons are fundamental to cooking and medicine. The Australian tablespoon is 20 mL, the UK tablespoon is 17.76 mL, and the US tablespoon is 14.79 mL.
Interesting fact: Capital T for tablespoon versus lowercase tsp for teaspoon is a convention designed to prevent dangerous dosing errors in medical and culinary contexts.