This conversion guide includes everything you need to know about teaspoons, ounces, how many ounces are in a teaspoon, and how to convert teaspoons to dry and liquid ounces.
How many ounces are in a teaspoon?
There are 0.167 ounces in one teaspoon (1 tsp = ⅙ oz). This refers to fluid ounces which are used for liquids.
The number of dry ounces in a teaspoon will vary depending on the ingredient (discussed later in this article).
Knowing the number of ounces in a teaspoon can help us take measurements if one does not have the tools to measure ounces.
What is a teaspoon?
A teaspoon is a unit to measure volume. A US teaspoon is defined as ⅙ fluid ounce, ⅓ of a tablespoon, and 1/48 cup.
The exact volume of a teaspoon can vary slightly between countries, especially between those using the metric system and those using the imperial system.
- In the metric system, one teaspoon is equal to 5 mL.
- In the US customary system, one teaspoon is equal to 4.93 mL.
- In the US, for nutrition labeling, one teaspoon is equal to 5 mL.
The teaspoon is abbreviated as “tsp” or “t.” In comparison, a tablespoon is abbreviated as “tbsp,” “T,” or “Tb.”
A bit of history: Spoons have been in use for a long time. The term “teaspoon” was introduced in a British advertisement in 1686, referring to a spoon specifically designed for tea.
What is an ounce?
An ounce is a unit of measurement that is part of the imperial system. It can be used for both liquid and dry ingredients. As a unit of weight, an ounce is approximately 28.35 grams which is 1/16 of a pound.
A fluid ounce is a measure of volume that is used for liquids. One US fluid ounce is equal to 29.57 milliliters.
Fluid ounces vs. dry ounces: A fluid ounce is a unit of measurement for volume, typically used for liquids, whereas a dry ounce is a unit used for measuring weight, commonly applied to dry ingredients.
How many fluid ounces are in a teaspoon?
One teaspoon has 0.167 fluid ounces (1 tsp = 0.167 fl oz).
How to convert teaspoons to fluid ounces?
Both fluid ounces and teaspoons are used to measure volume, so the conversion of teaspoons to fluid ounces is straightforward.
To convert any number of teaspoons to fluid ounces, just multiply it by 0.167. For example, to convert 12 teaspoons to fluid ounces, we can multiply 12 by 0.167, giving us 2 fluid ounces.
12 teaspoons × 0.167 = 2 fluid ounces
Another way to do the conversion: 6 teaspoons equals one fluid ounce, so 1 teaspoon will be 1 divided by 6. So, to convert any number of teaspoons to fluid ounces, we can divide it by 6.
Common conversions:
- ¼ tsp to oz: The answer is 0.0417 oz
- 1½ tsp to oz: The answer is 0.25 oz
- 2 tsp to oz: The answer is 0.33 oz
- 4 tsp to oz: The answer is 0.67 oz
- 6 tsp to oz: The answer is 1 oz
- 12 tsp to oz: The answer is 2 oz
- 25 tsp to oz: The answer is 4.167 oz
To convert fluid ounces to teaspoons, we can do the opposite – multiply by 6 or divide by 0.167. You can also check this detailed guide with charts on ounces to teaspoons conversion.
Teaspoons to fluid ounces conversion chart
Below is a chart showing the conversion of teaspoons (tsp) to fluid ounces (fl oz). Fluid ounces are used for liquids like water, milk, etc. All the conversions refer to US measurements.
- ¼ teaspoon (tsp) is equal to 0.0417 fluid ounces (fl oz)
- ½ teaspoon (tsp) is equal to 0.0833 fluid ounces (fl oz)
- 1 teaspoon (tsp) is equal to 0.167 fluid ounces (fl oz)
- 2 teaspoons (tsp) is equal to 0.33 fluid ounces (fl oz)
- 3 teaspoons (tsp) is equal to 0.5 fluid ounces (fl oz)
- 4 teaspoons (tsp) is equal to 0.67 fluid ounces (fl oz)
- 5 teaspoons (tsp) is equal to 0.83 fluid ounces (fl oz)
- 6 teaspoons (tsp) is equal to 1 fluid ounce (fl oz)
- 7 teaspoons (tsp) is equal to 1.167 fluid ounces (fl oz)
- 8 teaspoons (tsp) is equal to 1.33 fluid ounces (fl oz)
- 9 teaspoons (tsp) is equal to 1.5 fluid ounces (fl oz)
- 10 teaspoons (tsp) is equal to 1.67 fluid ounces (fl oz)
- 12 teaspoons (tsp) is equal to 2 fluid ounces (fl oz)
- 14 teaspoons (tsp) is equal to 2.33 fluid ounces (fl oz)
- 16 teaspoons (tsp) is equal to 2.67 fluid ounces (fl oz)
- 18 teaspoons (tsp) is equal to 3 fluid ounces (fl oz)
- 20 teaspoons (tsp) is equal to 3.33 fluid ounces (fl oz)
How many dry ounces are in a teaspoon?
The number of dry ounces in a teaspoon will depend on the ingredient. Dry ounces are used for dry ingredients like flour, sugar, baking powder, etc.
How to convert teaspoons to dry ounces?
Dry ounces are used for weight measurement, whereas teaspoons are for volume measurement. So, the conversion requires a bit more effort.
If you’re interested, the calculation methods are detailed below. However, if you’d rather not dive into the math, feel free to jump ahead to the conversion chart for common ingredients.
The conversion can be done in different ways. Just remember that one dry ounce weighs 28.35 grams which is 1/16th of a pound, and one teaspoon is approximately 5 ml.
Method 1
The most accurate method is to weigh a teaspoon of an ingredient on a kitchen scale.
If your kitchen scale has ounces as a unit of measurement: Weigh a teaspoon of an ingredient, and the value in ounces is your answer. It’s pretty simple!
If your kitchen scale has only grams as a weight measure: Weigh a teaspoon of the ingredient. Then divide the value you get by 28.35. This will give you ounces in a teaspoon.
For example, one teaspoon of XYZ ingredient weighs 14 grams. We will divide 14 by 28.35, which is 0.5. So, one teaspoon of XYZ has 0.5 dry ounces.
The formula here is – Weight of a teaspoon of the ingredient in grams ÷ 28.35 = Ounces of the ingredient in a teaspoon.
Method 2
The second method involves using the density of an ingredient (g/ml). We can multiply that by 5. This will give us the approximate weight of an ingredient in one teaspoon in grams. Then divide that value by 28.35. This will provide you with the number of ounces in a teaspoon.
Honestly, this process can be quite complex. It requires you to know each ingredient’s density and doesn’t account for factors like how tightly the teaspoon is packed.
Teaspoons to dry ounces conversion chart
To make it easier, I have included a chart showing ounces in one teaspoon of common kitchen ingredients. Please note these are only estimates.
The most precise method is using a kitchen scale and performing conversions as needed. Feel free to pin, save, or print these charts for easy reference.
A list of common dry ingredients with the conversion of teaspoons (tsp) to ounces (oz).
- One teaspoon (tsp) of all-purpose flour is equal to 0.09 ounces (oz).
- One teaspoon (tsp) of almond flour is equal to 0.07 ounces (oz).
- One teaspoon (tsp) of applesauce is equal to 0.19 ounces (oz).
- One teaspoon (tsp) of baking powder is equal to 0.147 ounces (oz).
- One teaspoon (tsp) of baking soda is equal to 0.2 ounces (oz).
- One teaspoon (tsp) of dried bread crumbs is equal to 0.083 ounces (oz).
- One teaspoon (tsp) of bread flour is equal to 0.09 ounces (oz).
- One teaspoon (tsp) of butter is equal to 0.167 ounces (oz).
- One teaspoon (tsp) of chickpea flour is equal to 0.063 ounces (oz).
- One teaspoon (tsp) of chocolate chips is equal to 0.125 ounces (oz).
- One teaspoon (tsp) of cinnamon is equal to 0.096 ounces (oz).
- One teaspoon (tsp) of cocoa powder is equal to 0.09 ounces (oz).
- One teaspoon (tsp) of coconut flour is equal to 0.093 ounces (oz).
- One teaspoon (tsp) of cornstarch is equal to 0.083 ounces (oz).
- One teaspoon (tsp) of cream cheese is equal to 0.167 ounces (oz).
- One teaspoon (tsp) of dates chopped is equal to 0.11 ounces (oz).
- One teaspoon (tsp) of dry whole milk powder is equal to 0.073 ounces (oz).
- One teaspoon (tsp) of ghee is equal to 0.125 ounces (oz).
- One teaspoon (tsp) of gluten-free all-purpose flour is equal to 0.115 ounces (oz).
- One teaspoon (tsp) of oat flour is equal to 0.068 ounces (oz).
- One teaspoon (tsp) of peanut butter is equal to 0.2 ounces (oz).
- One teaspoon (tsp) of quinoa flour is equal to 0.082 ounces (oz).
- One teaspoon (tsp) of table salt is equal to 0.21 ounces (oz).
- One teaspoon (tsp) of semolina flour is equal to 0.12 ounces (oz).
- One teaspoon (tsp) of sour cream is equal to 0.167 ounces (oz).
- One teaspoon (tsp) of brown sugar is equal to 0.15 ounces (oz).
- One teaspoon (tsp) of granulated sugar is equal to 0.146 ounces (oz).
- One teaspoon (tsp) of powdered sugar is equal to 0.09 ounces (oz).
- One teaspoon (tsp) of tapioca starch is equal to 0.083 ounces (oz).
- One teaspoon (tsp) of vanilla extract is equal to 0.167 ounces (oz).
- One teaspoon (tsp) of instant yeast is equal to 0.1 ounces (oz).
How to use measuring teaspoons for liquids?
When measuring, fill your teaspoon up to the brim without overflowing, and keep your container nearby to avoid spills while transferring the ingredient.
It is best to measure large quantities of liquids using a liquid measuring cup made of transparent material with markings. It also has a pouring spout which prevents spillage.
How to use measuring teaspoons for dry ingredients?
There are various methods to fill a teaspoon. Usually, unless stated otherwise in a recipe, we use a ‘level’ teaspoon, which is filled to the top and then leveled off with a straight knife edge to remove any excess. This is closest to one teaspoon.
Other types include a ‘scant’ teaspoon (filled just below the brim), a ’rounded’ teaspoon (where the ingredient is filled equally below and above the brim, close to 2 teaspoons), and a ‘heaped’ teaspoon (which is filled as much as possible).
How to measure using a kitchen scale?
A kitchen scale is a valuable tool that simplifies measurement and conversion tasks.
Here are some steps to accurately measure dry ingredients:
- Set the kitchen scale on a flat surface and turn it on.
- Put a container on the scale and press the tare button to reset the weight to 0.
- Add a teaspoon of the ingredient to the container and take note of the weight.
- Do any needed calculations or conversions.
Takeaway
There are 0.167 fluid ounces in one teaspoon. The number of dry ounces in a teaspoon will vary depending on the ingredient. The best way to know the dry ounces in a teaspoon is to use a kitchen scale to weigh the ingredients.
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