1.5 Tablespoons to Teaspoons
1.5 tbsp = 4.5 tsp
1.5 tablespoons equals 4.5 teaspoons.
How to convert 1.5 tbsp to tsp
Use the formula tsp = tbsp × 3:
tsp = 1.5 × 3tsp = 4.5
So 1.5 tbsp = 4.5 tsp.
Rounded values and quick estimate
- Rounded to a whole number: 5 tsp
- Rounded to one decimal place: 4.5 tsp
- Conversion factor: 1 tablespoon = 3 teaspoons
This conversion is exact, so there is no need to estimate: just multiply by 3.
1.5 Tablespoons in other units
- Teaspoons
- 4.5 tsp
- Milliliters
- 22.18 ml
- Liters
- 0.0222 L
- US fluid ounces
- 0.75 fl oz
- US cups
- 0.0938 cups
- US pints
- 0.0469 pt
- US quarts
- 0.0234 qt
- US gallons
- 0.005859 gal
- Cubic centimeters
- 22.18 cc
- Cubic inches
- 1.35 cu in
- Cubic feet
- 0.000783 cu ft
- Drops
- 443.6 drops
- Oil barrels
- 0.00014 bbl
- UK gallons
- 0.004879 UK gal
- Cubic meters
- 0.000022 m³
- Cubic yards
- 0.000029 cu yd
1.5 tbsp and nearby values
| Tablespoons | Teaspoons |
|---|---|
| 1.1 tbsp | 3.3 tsp |
| 1.2 tbsp | 3.6 tsp |
| 1.3 tbsp | 3.9 tsp |
| 1.4 tbsp | 4.2 tsp |
| 1.5 tbsp | 4.5 tsp |
| 1.6 tbsp | 4.8 tsp |
| 1.7 tbsp | 5.1 tsp |
| 1.8 tbsp | 5.4 tsp |
| 1.9 tbsp | 5.7 tsp |
About tablespoons and teaspoons
A US tablespoon is 3 teaspoons or 1/2 fluid ounce, about 14.79 ml. (Australia uses a 20 ml tablespoon.)
A US teaspoon is 1/3 of a tablespoon, about 4.93 ml. Many countries round a teaspoon to 5 ml.
Related conversions
Frequently asked questions
What is 1.5 Tablespoons in Teaspoons?
1.5 tablespoons is 4.5 teaspoons (1.5 tbsp = 4.5 tsp).
How do you convert 1.5 tbsp to tsp?
Apply tsp = tbsp × 3: tsp = 1.5 × 3, tsp = 4.5.
How many tablespoons is 4.5 tsp?
4.5 tsp is about 1.5 tablespoons.