3 tsp to tbsp
- US teaspoons (tsp)
- 3 tsp
- US tablespoons
- 1 tbsp
Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions)
US teaspoons to US tablespoons converter
Convert US teaspoons to US tablespoons (tsp to tbsp) with the exact factor, a conversion chart and worked steps.
US tablespoons
tbsp
US tablespoons: 1 tbsp
- Conversion
- 3 tsp = 1 tbsp
- 1 tbsp in US teaspoons
- 3tsp
3 US teaspoons is 1 US tablespoons. Going the other way, 1 tbsp is 3 tsp.
US teaspoons to US tablespoons
Tsp to tbsp chart
| US teaspoons | US tablespoons |
|---|---|
| 1 | 0.3333 |
| 1.5 | 0.5 |
| 2 | 0.6667 |
| 3 | 1 |
| 4 | 1.3333 |
| 5 | 1.6667 |
| 6 | 2 |
| 9 | 3 |
| 12 | 4 |
How it's calculated S
Conversion factor
Rounded here for display; the calculation uses 50 significant digits.
Multiply
About the US teaspoons to US tablespoons converter
Teaspoon quantities are useful when a recipe calls for a small amount and only a larger measure is available. Enter fractions precisely and check the US measuring-spoon convention. Ordinary cutlery is not a calibrated measuring tool.
One US teaspoon is about 0.3333333333 US tablespoons, so 3 tsp is 1 tbsp. To convert tsp to tbsp, multiply by 0.3333333333; to convert back, multiply by 3.
The US teaspoon is a third of a tablespoon, exactly 4.92892159375 mL. The factor has no exact decimal form, so results are computed with 50 significant digits and rounded only for display.
Worked examples
9 tsp to tbsp
- US teaspoons (tsp)
- 9 tsp
- US tablespoons
- 3 tbsp
Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions)
1 tsp to tbsp
- US teaspoons (tsp)
- 1 tsp
- US tablespoons
- 0.3333333333 tbsp
Checked against: Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions)
Questions
When would I convert tsp to tbsp?
Teaspoon quantities are useful when a recipe calls for a small amount and only a larger measure is available. Enter fractions precisely and check the US measuring-spoon convention. Ordinary cutlery is not a calibrated measuring tool.
How many US tablespoons are in a US teaspoon?
One US teaspoon is about 0.3333333333 US tablespoons. The US teaspoon is a third of a tablespoon, exactly 4.92892159375 mL.
How do you convert tsp to tbsp?
Multiply the number of US teaspoons by 0.3333333333. For example, 3 tsp × 0.3333333333 = 1 tbsp. To go the other way, divide by 0.3333333333.
How can I estimate tsp to tbsp without a calculator?
Multiply by 0.33. That is 1% low of the exact factor 0.3333333333, so 3 tsp comes out as 0.99 tbsp instead of 1.
How accurate is the US teaspoons to US tablespoons converter?
Accuracy depends on your inputs and the method's assumptions. Decimal arithmetic uses 50 significant digits, but estimates, numerical methods and source data can be less precise; the displayed rounding does not remove those limits. It is checked against 3 worked examples whose answers come from independent sources; for example, “3 tsp to tbsp” is checked against Exact-fraction computation from the legal unit definitions (scripts/gen-pairs.py, Python fractions).
Where does the method come from?
NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B; NIST Handbook 44, Appendix C: General tables of units of measurement; BIPM, The International System of Units (SI Brochure), 9th edition.
About this calculator
Sources
Checked against references
3 worked examples with independently sourced answers ship with this calculator. They run in the test suite; you can run them here too.
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