1 teaspoon is equal to approximately 0.1667 ounces (oz).
When converting 1 teaspoon to ounces, we use the standard conversion factor where 1 teaspoon is about 1/6 of an ounce by volume. This means that a small volume measured in teaspoons translates to a fraction of an ounce, useful in cooking or medicine.
Conversion Tool
Result in oz:
Conversion Formula
The conversion from teaspoon to ounces is based on volume measurements, where 1 teaspoon equals 1/6 of an ounce. The formula used is:
ounces (oz) = teaspoons × 1/6
This works because the US customary teaspoon is defined as exactly 4.92892 milliliters, and the US fluid ounce equals 29.5735 milliliters. Dividing 4.92892 by 29.5735 gives approximately 0.1667 ounces per teaspoon.
Step-by-step example for 1 teaspoon:
- 1 teaspoon = 4.92892 mL
- 1 ounce = 29.5735 mL
- 1 teaspoon in oz = 4.92892 ÷ 29.5735 ≈ 0.1667 oz
Conversion Example
- Convert 3 teaspoons to oz:
- Multiply 3 by 0.1667
- 3 × 0.1667 = 0.5001 oz
- So, 3 teaspoons equal approximately 0.5 ounces
- Convert 7.5 teaspoons to oz:
- 7.5 × 0.1667 ≈ 1.2503 oz
- This shows 7.5 teaspoons is about 1.25 ounces
- Convert 0.25 teaspoon to oz:
- 0.25 × 0.1667 = 0.0417 oz
- A quarter teaspoon is very close to 0.042 ounces
- Convert 12 teaspoons to oz:
- 12 × 0.1667 = 2.0004 oz
- So 12 teaspoons equal roughly 2 ounces
Conversion Chart
The chart below shows the equivalent ounces for teaspoons values from -24.0 to 26.0. Negative values may represent subtraction or reverse measurement. To use the chart, find the teaspoon value in the left column and read across to find its ounce equivalent.
| Teaspoons | Ounces (oz) |
|---|---|
| -24.0 | -4.0000 |
| -20.0 | -3.3333 |
| -16.0 | -2.6667 |
| -12.0 | -2.0000 |
| -8.0 | -1.3333 |
| -4.0 | -0.6667 |
| 0.0 | 0.0000 |
| 2.0 | 0.3333 |
| 4.0 | 0.6667 |
| 6.0 | 1.0000 |
| 8.0 | 1.3333 |
| 10.0 | 1.6667 |
| 12.0 | 2.0000 |
| 14.0 | 2.3333 |
| 16.0 | 2.6667 |
| 18.0 | 3.0000 |
| 20.0 | 3.3333 |
| 22.0 | 3.6667 |
| 24.0 | 4.0000 |
| 26.0 | 4.3333 |
Related Conversion Questions
- How many ounces are in 1 teaspoon?
- What is the oz equivalent of one teaspoon?
- Can I convert 1 tsp to ounces for cooking?
- Is 1 teaspoon the same as 0.1667 oz?
- How to change 1 teaspoon measurement into ounces?
- What does 1 teaspoon equal in fluid ounces?
- How to convert a single teaspoon into oz for a recipe?
Conversion Definitions
Teaspoon: A teaspoon is a unit of volume commonly used in cooking and medicine. In the US, one teaspoon equals 4.92892 milliliters. It’s used to measure small quantities, especially for ingredients like spices or liquids. The term also refers to a small spoon designed to hold this amount.
Ounce (oz): An ounce is a unit of weight or volume depending on context. In fluid ounces, it measures volume, equal to approximately 29.5735 milliliters in the US system. Ounces are often used in cooking, nutrition, and packaging to express quantity or weight of ingredients and substances.
Conversion FAQs
Why is 1 teaspoon equal to about 0.1667 ounces?
Because the US teaspoon is defined as 4.92892 milliliters and the US fluid ounce as 29.5735 milliliters, dividing the two gives the ratio: 1 tsp = 4.92892 ÷ 29.5735 ≈ 0.1667 oz. This value reflects volume measurement, not weight, which can differ based on substance density.
Can teaspoon to ounce conversion be used for dry ingredients?
The conversion between teaspoons and fluid ounces is for volume measurements and best for liquids. Dry ingredients’ weight-to-volume relationship varies with density, so converting teaspoons to ounces by weight requires knowing the ingredient’s density, as ounces can measure weight or volume.
Is the conversion the same in all countries?
No, teaspoon and ounce sizes can differ. The US teaspoon equals 4.92892 mL, but in the UK a teaspoon is sometimes considered 5.91939 mL. Fluid ounces also vary between US (29.5735 mL) and UK (28.4131 mL). These differences affect exact conversions.
How accurate is this teaspoon to ounce conversion?
The conversion is precise according to US standard measurements. However, slight variations happen due to rounding. For cooking, the small difference is negligible, but in scientific or pharmaceutical contexts, exact measurements and units should be confirmed carefully.
Can this conversion tool handle negative values?
Yes, the tool calculates negative teaspoon input values converting them to negative ounces. This might be useful in calculations where volume subtraction is needed, though negative volumes aren’t physically meaningful in actual measurement contexts.