US tablespoon to US teaspoon Converter
1 tbsp = 3 tsp — convert instantly with formula and table.
Use the converter above for an immediate result — it recalculates on every keystroke and works offline once the page has loaded.
Quick answer: one us tablespoon equals 3 US teaspoons. So to convert US tablespoons to US teaspoons, multiply by 3.
How to convert US tablespoons to US teaspoons
US teaspoons = US tablespoons × 3
The US tablespoon equals three teaspoons or about 14.79 ml. Sixteen tablespoons make one US cup, a ratio every baker eventually memorizes.
The US teaspoon is defined as exactly 4.92892159375 ml — one third of a tablespoon — and anchors small quantities in American recipes.
US tablespoon to US teaspoon conversion table
| US tablespoon (tbsp) | US teaspoon (tsp) |
|---|---|
| 0.01 tbsp | 0.03 tsp |
| 0.1 tbsp | 0.3 tsp |
| 0.25 tbsp | 0.75 tsp |
| 0.4 tbsp | 1.2 tsp |
| 0.75 tbsp | 2.25 tsp |
| 1.25 tbsp | 3.75 tsp |
| 1.75 tbsp | 5.25 tsp |
| 2.5 tbsp | 7.5 tsp |
| 3.5 tbsp | 10.5 tsp |
| 4.5 tbsp | 13.5 tsp |
| 6 tbsp | 18 tsp |
| 8 tbsp | 24 tsp |
| 10 tbsp | 30 tsp |
| 12 tbsp | 36 tsp |
| 14 tbsp | 42 tsp |
| 16 tbsp | 48 tsp |
| 18 tbsp | 54 tsp |
| 20 tbsp | 60 tsp |
| 24 tbsp | 72 tsp |
| 26 tbsp | 78 tsp |
| 30 tbsp | 90 tsp |
| 35 tbsp | 105 tsp |
| 45 tbsp | 135 tsp |
| 55 tbsp | 165 tsp |
| 65 tbsp | 195 tsp |
| 75 tbsp | 225 tsp |
| 85 tbsp | 255 tsp |
| 95 tbsp | 285 tsp |
| 110 tbsp | 330 tsp |
| 125 tbsp | 375 tsp |
| 175 tbsp | 525 tsp |
| 250 tbsp | 750 tsp |
| 350 tbsp | 1,050 tsp |
| 450 tbsp | 1,350 tsp |
| 600 tbsp | 1,800 tsp |
| 750 tbsp | 2,250 tsp |
| 900 tbsp | 2,700 tsp |
| 1,500 tbsp | 4,500 tsp |
| 2,500 tbsp | 7,500 tsp |
| 10,000 tbsp | 30,000 tsp |
Need the opposite direction? Use the US teaspoon to US tablespoon converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many US teaspoons are in one us tablespoon?
One us tablespoon equals 3 US teaspoons. Multiply any us tablespoon value by 3 to get US teaspoons.
What is 10 US tablespoons in US teaspoons?
10 US tablespoons equal 30 US teaspoons (10 × 3).
Is the us tablespoon to us teaspoon conversion exact?
The conversion factor used here (3) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.