US Tablespoons to US Teaspoons Converter
Convert US tablespoons to US teaspoons instantly with this free US tablespoons to US teaspoons converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.
What is 1 US tablespoon in US teaspoons?
1 US tablespoon is equal to exactly 3 US teaspoons.
1 × 3 = 3 US teaspoons
1 US tablespoon = 3 US teaspoons
US tablespoons to US teaspoons formula
tsp = tbsp × 3
The US tablespoons to US teaspoons conversion factor is 3, which is exact by definition. 1 US tablespoon = 3 US teaspoons, and 1 US teaspoon = 0.333333333333 US tablespoons.
Worked examples
- 2 US tablespoons = 6 US teaspoons — 2 × 3 = 6 US teaspoons
- 6 US tablespoons = 18 US teaspoons — 6 × 3 = 18 US teaspoons
- 10 US tablespoons = 30 US teaspoons — 10 × 3 = 30 US teaspoons
US tablespoons to US teaspoons conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| US tablespoons (tbsp) | US teaspoons (tsp) |
|---|---|
| 1 tbsp | 3 tsp |
| 2 tbsp | 6 tsp |
| 3 tbsp | 9 tsp |
| 4 tbsp | 12 tsp |
| 5 tbsp | 15 tsp |
| 6 tbsp | 18 tsp |
| 7 tbsp | 21 tsp |
| 8 tbsp | 24 tsp |
| 9 tbsp | 27 tsp |
| 10 tbsp | 30 tsp |
| 12 tbsp | 36 tsp |
| 15 tbsp | 45 tsp |
| 20 tbsp | 60 tsp |
| 25 tbsp | 75 tsp |
| 30 tbsp | 90 tsp |
| 50 tbsp | 150 tsp |
| 75 tbsp | 225 tsp |
| 100 tbsp | 300 tsp |
| 500 tbsp | 1,500 tsp |
| 1,000 tbsp | 3,000 tsp |
When you need to convert US tablespoons to US teaspoons
- Scaling recipes between metric millilitres and US cups, pints or fluid ounces.
- Comparing fuel prices and tank capacities between countries.
- Working out paint, fertiliser or pool chemical quantities from instructions written for another market.
Common mistakes to avoid
- Dividing when you should multiply. Because 1 US tablespoon = 3 US teaspoons, the answer should be larger than the number you started with.
- Rounding too early. Convert first at full precision, then round the final answer to the precision the task actually needs.
How precise does the answer need to be?
Cooking tolerates rounding to the nearest 5 mL or quarter cup. Dosing, chemistry and pool treatment do not — keep the full converted value there.
How these units are defined
- US tablespoon (tbsp): Three US teaspoons, about 14.79 mL. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
- US teaspoon (tsp): One third of a US tablespoon, about 4.93 mL. This unit's relationship to the SI base unit is exact by definition, so no rounding enters the conversion factor.
Related conversions
- US teaspoons to US tablespoons
- US tablespoons to Milliliters
- US tablespoons to Liters
- US tablespoons to Cubic meters
- US tablespoons to Cubic feet
- US tablespoons to US fluid ounces
- US tablespoons to US cups
- US tablespoons to US liquid pints
- US tablespoons to US liquid quarts
- US tablespoons to US liquid gallons
- US tablespoons to Imperial pints
- US tablespoons to Imperial gallons
Frequently asked questions
- What is 1 US tablespoon in US teaspoons?
- 1 US tablespoon is equal to 3 US teaspoons.
- How many US tablespoons are in one US teaspoon?
- There are 0.333333333 US tablespoons in 1 US teaspoon.
- How do you convert US tablespoons to US teaspoons?
- Multiply the number of US tablespoons by 3 — or use the formula tsp = tbsp × 3.
- What is 6 US tablespoons in US teaspoons?
- 6 US tablespoons is 18 US teaspoons. 6 × 3 = 18 US teaspoons.
- Is the US tablespoons to US teaspoons conversion exact?
- Yes. The relationship is fixed by definition, so 3 is an exact conversion factor — only the displayed result is rounded.