Keep the measurement system consistent
The three-to-one relationship here applies to US teaspoons and US tablespoons.
Unit converter
Teaspoons to Tablespoons Converter
Convert US teaspoons to US tablespoons instantly. Small recipe measures. See the formula, worked examples and practical reference values.
How to convert US tsp to US tbsp
Teaspoons to tablespoons simplifies small recipe quantities using US customary volume definitions. It does not convert ingredients by weight.
Formula: US tbsp = US tsp × 0.333333
Reverse formula: US tsp = US tbsp × 3
Worked example
1 US tsp = 0.333333 US tbsp
- = 4.928922 mL
- = 0.004929 L
- = 0.020833 US cup
Avoid these errors
Common mistakes
Level and heaped spoons are not equivalent
Recipe unit definitions assume a measured volume, while a heaped household spoon is not standardized.
Useful for: US teaspoon recipe volumes converted to US tablespoons.
Common US tsp to US tbsp conversions
| US teaspoons | US tablespoons |
|---|---|
| 1 US tsp | 0.333333 US tbsp |
| 2 US tsp | 0.666667 US tbsp |
| 3 US tsp | 1 US tbsp |
| 6 US tsp | 2 US tbsp |
| 9 US tsp | 3 US tbsp |
| 12 US tsp | 4 US tbsp |
| 24 US tsp | 8 US tbsp |
| 48 US tsp | 16 US tbsp |
About the units
A US teaspoon is an US customary unit represented by US tsp. A US tablespoon is an US customary unit represented by US tbsp. Calculations use the same authoritative registry as the full volume converter, retaining full precision until display.
Sources and definitions
NIST — SI units and conversion guidance
Conversion constants come from the shared EzyCalculator unit registry. See how calculations are reviewed and tested.