Quick answer: 1 US teaspoon equals 0.1667 fluid ounces. There are exactly 6 teaspoons in 1 fluid ounce. Because both units measure volume, ingredient density does not affect this conversion.
Teaspoons to fluid ounces formula
Divide teaspoons by 6 to get US fluid ounces. To go the other way, multiply fluid ounces by 6. For example, 3 tsp is 0.5 fl oz, and 12 tsp is 2 fl oz.
Teaspoons to fluid ounces chart
| Teaspoons | Fluid ounces | Common measure |
|---|---|---|
| 1 tsp | 0.1667 fl oz | — |
| 3 tsp | 0.5 fl oz | 1 tablespoon |
| 6 tsp | 1 fl oz | 2 tablespoons |
| 12 tsp | 2 fl oz | ¼ cup |
| 48 tsp | 8 fl oz | 1 cup |
Fluid ounces vs weight ounces
A fluid ounce measures volume; a weight ounce measures mass. This page is for fluid ounces. If a recipe says oz without “fl,” check its context: liquid recipes often mean fluid ounces, while baking recipes commonly mean weight ounces.
Frequently asked questions
How many teaspoons are in a fluid ounce?
There are exactly 6 US teaspoons in 1 US fluid ounce.
Is 1 teaspoon equal to 0.17 fluid ounces?
Yes. One teaspoon is 0.1667 fluid ounces, which rounds to 0.17 fl oz.
Related converters
For weight-based results by ingredient, use the teaspoons to ounces converter. For milliliters, use teaspoons to milliliters.
