Elara Bennett1.5 tablespoons (tbsp) equals 4.5 teaspoons (tsp).
To convert tablespoons to teaspoons, multiply the number of tablespoons by 3 because there are 3 teaspoons in each tablespoon. Therefore, 1.5 tbsp × 3 = 4.5 tsp.
Conversion Tool
Result in tsp:
Conversion Formula
The conversion formula to change tablespoons (tbsp) into teaspoons (tsp) is:
tsp = tbsp × 3
This works because one tablespoon contains exactly three teaspoons. To convert, you multiply the number of tablespoons by three to get the equivalent teaspoons.
Example calculation:
- Given: 2 tbsp
- Step 1: Multiply 2 by 3
- Step 2: 2 × 3 = 6
- Result: 2 tbsp = 6 tsp
Conversion Example
- Example: Convert 4.2 tbsp to tsp
- Multiply 4.2 by 3
- 4.2 × 3 = 12.6
- So, 4.2 tbsp equals 12.6 tsp
- Example: Convert 0.75 tbsp to tsp
- Multiply 0.75 by 3
- 0.75 × 3 = 2.25
- Therefore, 0.75 tbsp equals 2.25 tsp
- Example: Convert 10 tbsp to tsp
- Multiply 10 by 3
- 10 × 3 = 30
- So, 10 tbsp equals 30 tsp
- Example: Convert 1 tbsp to tsp
- Multiply 1 by 3
- 1 × 3 = 3
- 1 tbsp equals 3 tsp
Conversion Chart
The chart below shows values from -23.5 to 26.5 tablespoons converted into teaspoons. Negative values might be rare in cooking but useful in some calculations. To read the chart, find the tbsp value on the left column, then see the corresponding tsp value on the right.
| Tablespoons (tbsp) | Teaspoons (tsp) |
|---|---|
| -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 |
Related Conversion Questions
- How many teaspoons are in 1.5 tablespoons exactly?
- What is the tsp equivalent of 1.5 tbsp in cooking measurements?
- Can I convert 1.5 tbsp to teaspoons for a recipe?
- How to change 1.5 tablespoons into teaspoons quickly?
- Is 1.5 tbsp bigger or smaller than 4 teaspoons?
- How many tsp does 1.5 tbsp make for baking?
- Why does 1.5 tbsp equal 4.5 tsp in conversions?
Conversion Definitions
tbsp (Tablespoon): A tablespoon is a unit of volume measurement commonly used in cooking and serving sizes. It equals 3 teaspoons or about 14.79 milliliters. The tablespoon is used for measuring liquids and dry ingredients in recipes mainly in the US and UK.
tsp (Teaspoon): A teaspoon is a smaller unit of volume used in cooking, approximately 4.93 milliliters. It is one-third of a tablespoon and frequently used to measure spices, baking powder, or small amounts of liquid ingredients.
Conversion FAQs
Can I convert tablespoons to teaspoons without a calculator?
Yes, since 1 tablespoon equals 3 teaspoons, you can multiply the number of tablespoons by 3 mentally or on paper to get the teaspoons. It’s a simple multiplication step that doesn’t require complex tools.
Why is the tablespoon to teaspoon ratio exactly 3?
The ratio is based on standard kitchen measurement definitions where a tablespoon is defined as three teaspoons. This standardization helps cooks and bakers keep ingredient amounts consistent across recipes.
Does this conversion apply worldwide?
Mostly in the US and UK, yes. However, some countries use metric measurements instead, so tablespoons and teaspoons might slightly differ in volume size depending on local standards.
Can I use this conversion for medicinal doses?
While the tbsp to tsp conversion is accurate for cooking, medicinal doses should follow exact measurements on labels or prescriptions, as volume differences can affect dosage safety.
What if I have a fraction of a tablespoon, how to convert it?
Simply multiply the fractional tablespoon value by 3 to get the equivalent teaspoons. For example, 0.5 tbsp × 3 = 1.5 tsp. This method works the same regardless of the fraction size.
