A cooking dash approximated as 1/8 teaspoon.
Dashs to Fluid ounces Converter — dash to fl oz
Convert Dash (dash) to Fluid ounce (fl oz) using the exact conversion factor (1 dash = 0.0208333334 fluid ounce). See the formula, worked examples, conversion table, history, and common uses.
Dashs to Fluid ounces converter
Converter
Cooking Converter
Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
A US fluid ounce is 1/128 of a US gallon.
Result = input x 6.161152e-7 / 2.95735296e-5.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Dashs to Fluid ounces
Dash and Fluid ounce both show up in recipes, and converting between them matters whenever a recipe from one country's cookbook needs to be followed with another country's measuring tools. Specifically: A cooking dash approximated as 1/8 teaspoon, and a US fluid ounce is 1/128 of a US gallon.
Formula
fluid ounces = dashs × 0.0208333333598
This factor comes from each unit's defined relationship to the category's base unit: 1 dash equals 6.161152e-7 base units, and 1 fluid ounce equals 0.0000295735295625 base units, so dividing one by the other gives the direct dash-to-fluid ounce factor of 0.0208333333598.
Simple example
1 dash × 0.02083333336 = 0.0208333334 fl oz
1 dash = 0.0208333334 fluid ounces.
Real-world example
2 dash × 0.02083333336 = 0.0416666667 fl oz
2 dashs = 0.0416666667 fluid ounces.
Conversion table
| Dash (dash) | Fluid ounce (fl oz) |
|---|---|
| 0.25 dash | 0.0052083333 fl oz |
| 0.5 dash | 0.0104166667 fl oz |
| 1 dash | 0.0208333334 fl oz |
| 2 dash | 0.0416666667 fl oz |
| 4 dash | 0.0833333334 fl oz |
| 8 dash | 0.1666666669 fl oz |
Reverse conversion: Fluid ounce to Dash
0.0208333334 fl oz × 47.99999994 = 1.000000002 dash
0.0208333334 fluid ounces = 1.000000002 dashs.
dashs = fluid ounces × 47.9999999391
For a page dedicated to this direction, see Fluid ounce to Dash.
Understanding the Dash (dash)
A cooking dash approximated as 1/8 teaspoon.
Understanding the Fluid ounce
Fluid ounce (fl oz) measures volume. The US fluid ounce is 1/128 of a US gallon: exactly 29.5735295625 milliliters. It is classified as a US customary unit.
Where it's used: United States (beverage, nutrition labeling)
Uses of the Fluid ounce today
- US beverage container sizing (soda, water bottles)
- US nutrition and medication dosing labels
History of the Fluid ounce
The US fluid ounce follows from the same English wine-gallon system as the rest of the US liquid volume units, defined as a consistent fraction of the gallon.
Historical origin. Fluid ounce was not the invention of a single named person; it developed through the process described above.
Fluid ounce — sources
- NIST Handbook 44, Appendix C — General tables of units including the US fluid ounce definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many fluid ounces are in 1 dash?
1 dash equals 0.0208333334 fluid ounces, using the exact defined conversion factor rather than an estimate.
How do I convert dash to fluid ounce?
Multiply the dash value by 0.02083333336. The converter above does this instantly to whatever precision you set.
How do I convert fluid ounce back to dash?
Use the reverse factor: 1 fluid ounce equals 47.99999994 dashs. You can also use the swap control in the converter above to flip the direction instantly.
What is a dash?
Dash (dash) is a unit of cooking.
What is a fluid ounce?
Fluid ounce (fl oz) measures volume. The US fluid ounce is 1/128 of a US gallon: exactly 29.5735295625 milliliters. It is classified as a US customary unit.
Is the dash to fluid ounce conversion exact?
Yes. The US fluid ounce is 1/128 of a US gallon: exactly 29.5735295625 milliliters. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.