How Many Ounces in a Teaspoon?
0.1667 fl oz
1 US teaspoon equals 0.1667 fluid ounce; it takes 6 teaspoons to make 1 US fluid ounce.
UK: 1 metric teaspoon (5 ml) = 0.176 imp fl oz
Exact: 1 fl oz = 6 tsp
Teaspoons to Ounces conversion chart
| Teaspoons | Ounces |
|---|---|
| one eighth teaspoon | 0.02083 |
| one quarter teaspoon | 0.04167 |
| one half teaspoon | 0.08333 |
| three quarters teaspoon | one eighth |
| 1 tsp | 0.1667 |
| 1 and one half teaspoons | one quarter |
| 2 tsp | one third |
| 3 tsp | one half |
| 4 tsp | two thirds |
| 5 tsp | 0.8333 |
| 6 tsp | 1 |
| 8 tsp | 1 and one third |
| 9 tsp | 1 and one half |
| 10 tsp | 1 and two thirds |
| 12 tsp | 2 |
| 15 tsp | 2 and one half |
| 16 tsp | 2 and two thirds |
| 18 tsp | 3 |
| 24 tsp | 4 |
| 36 tsp | 6 |
| 48 tsp | 8 |
How to convert teaspoons to ounces
fluid ounces = teaspoons ÷ 6
Example: 4 tsp ÷ 6 = 2/3 fl oz.
Divide the teaspoons by 6 to get US fluid ounces. That divisor is 3 teaspoons per tablespoon times 2 tablespoons per ounce.
For 9 teaspoons of lemon juice, 9 ÷ 6 = 1 1/2 fluid ounces. For 15 teaspoons, the answer is 2 1/2 fluid ounces.
Counts that do not divide evenly leave an awkward decimal. 7 teaspoons come to 1.167 fl oz, so measure 2 tablespoons and one more teaspoon instead of reading a cup. For the reverse, use ounces to teaspoons.
US vs UK teaspoons and fluid ounces
A UK teaspoon is 5 ml and a US teaspoon 4.93 ml. The difference is too small to notice in one spoonful and only shows when you count dozens.
The ounce is what really changes. An imperial fluid ounce (28.41 ml) holds about 5.7 metric teaspoons, so a British recipe's ounces turn into slightly fewer teaspoons than American ones.
If a recipe gives milliliters (millilitres), skip ounces altogether and use teaspoons to milliliters.
| Unit | Size | Used in |
|---|---|---|
| US teaspoon | 4.929 ml | US |
| metric teaspoon | 5 ml | UK, Australia, Canada, New Zealand |
| US fluid ounce | 29.57 ml | US |
| imperial fluid ounce | 28.41 ml | UK |
How much does a teaspoon weigh in ounces?
It depends on the ingredient, because an ounce of weight is not a fluid ounce. USDA figures put a teaspoon of granulated sugar at about 0.15 oz, active dry yeast at 0.14 oz and butter at 0.17 oz. Water is the case where the two numbers nearly agree: a teaspoon of it weighs about 0.17 oz, almost the same figure as its volume in fluid ounces.
The NIST culinary measurement tips call weighing ingredients on a kitchen scale a best practice. For amounts this small, grams are easier to read than ounces; see teaspoons to grams.
Teaspoons and ounces: questions
How many teaspoons does it take to make 1 oz?
6 teaspoons make one US fluid ounce, the same as 2 tablespoons. For a quick count, remember that every tablespoon in that ounce holds 3 teaspoons.
Is a teaspoon 1/4 oz?
No. A teaspoon holds 4.93 ml, while a quarter fluid ounce is 7.39 ml, half as much again. It takes 1 1/2 teaspoons to reach a quarter ounce.
Does 2 tsp equal 1 oz?
No. 2 teaspoons hold 9.9 ml, about a third of a fluid ounce. The amount that does make an ounce is 2 tablespoons, so check whether the recipe means teaspoons or tablespoons.
Does 2 tbsp equal 1 oz?
Yes. 2 tablespoons are 6 teaspoons, and that is exactly one US fluid ounce. By weight the answer changes with the food, as the section above shows.
How many ounces are in 1/2 teaspoon?
About 0.083 fl oz, or 2.5 ml. At this size, milliliters or the spoon itself are easier to work with than ounces, and a 1/2 teaspoon measure gives the amount directly.
Related conversions
Sources: Unit definitions: NIST Handbook 44 · Last reviewed · Report an error
https://howmanyounces.com/teaspoons-to-ounces/