1.5 tablespoons is equal to 4.5 teaspoons.
To convert tablespoons to teaspoons, you multiply the number of tablespoons by 3 because each tablespoon contains exactly 3 teaspoons. So, 1.5 tablespoons times 3 gives 4.5 teaspoons.
Conversion Tool
Result in teaspoons:
Conversion Formula
The formula for converting tablespoons to teaspoons is simple: multiply the number of tablespoons by 3. This works because one tablespoon contains exactly three teaspoons. Therefore, the relationship is a fixed ratio.
Mathematically:
Teaspoons = Tablespoons × 3
For example, converting 1.5 tablespoons:
- Start with 1.5 tablespoons
- Multiply by 3 (because 1 tablespoon = 3 teaspoons)
- 1.5 × 3 = 4.5 teaspoons
Conversion Example
- Convert 2 tablespoons to teaspoons:
- Take 2 tablespoons
- Multiply by 3
- 2 × 3 = 6 teaspoons
- Convert 0.75 tablespoons to teaspoons:
- Start with 0.75 tablespoons
- Multiply 0.75 by 3
- 0.75 × 3 = 2.25 teaspoons
- Convert 4 tablespoons to teaspoons:
- Use 4 tablespoons
- Multiply 4 × 3
- Result is 12 teaspoons
- Convert 1 tablespoon to teaspoons:
- 1 tablespoon times 3
- Equals 3 teaspoons
Conversion Chart
| Tablespoons | Teaspoons |
|---|---|
| -23.5 | -70.5 |
| -20 | -60 |
| -15 | -45 |
| -10 | -30 |
| -5 | -15 |
| 0 | 0 |
| 5 | 15 |
| 10 | 30 |
| 15 | 45 |
| 20 | 60 |
| 25 | 75 |
| 26.5 | 79.5 |
This chart helps you quickly see the corresponding teaspoons for given tablespoons values. To read it, find the tablespoons value in the left column, then look right to see its equivalent in teaspoons.
Related Conversion Questions
- How many teaspoons are there in 1.5 tablespoons?
- What is the teaspoon equivalent of 1 and a half tablespoons?
- Can I convert 1.5 tablespoons to teaspoons without a calculator?
- Is 1.5 tablespoons more than 4 teaspoons?
- How to accurately measure 1.5 tablespoons in teaspoons for cooking?
- What’s the formula to change 1.5 tablespoons into teaspoons?
- Does 1.5 tablespoons equal 4.5 teaspoons exactly?
Conversion Definitions
Tablespoons: A tablespoon is a unit of volume commonly used in cooking measurements, equal to three teaspoons or approximately 14.79 milliliters. It is larger than a teaspoon and used for measuring both liquid and dry ingredients.
Teaspoons: A teaspoon is a small volume unit used for culinary measurements, equal to one-third of a tablespoon or about 4.93 milliliters. It’s often used to measure spices, baking powder, or small amounts of liquid.
Conversion FAQs
Can I use the tablespoon to teaspoon conversion for any ingredient?
The conversion between tablespoons and teaspoons is volume-based, so it works for both liquid and dry ingredients. However, because weight varies between substances, the conversion applies only to volume, not weight. For example, 1.5 tablespoons of flour won’t weigh the same as 1.5 tablespoons of honey.
Why is a tablespoon equal to exactly three teaspoons?
This is a standardized measurement in cooking and baking. The ratio comes from traditional English measurement systems where a tablespoon was defined as three teaspoons to keep recipes consistent and easy to follow.
Is the conversion different between US and UK tablespoons and teaspoons?
There are slight differences: US tablespoons are about 14.79 ml, while UK ones are around 17.76 ml. This affects conversion slightly. But the ratio of 1 tablespoon to 3 teaspoons remains the same in both systems.
What happens if I round the teaspoons value after conversion?
Rounding can cause small errors in recipes, especially in baking where precision matters. For 1.5 tablespoons, converting to 4.5 teaspoons is exact, but rounding to 4 or 5 teaspoons may change the outcome slightly.
Can this conversion be used for medical doses?
Measuring medications should always follow the instructions on the packaging or from a healthcare professional. Tablespoon to teaspoon conversions might be used for liquid medicines, but precision tools like syringes or measuring cups are safer.