Deciliter is 0.1 liter units.
Deciliters to Fluid ounces Converter — dL to fl oz
Convert Deciliter (dL) to Fluid ounce (fl oz) using the exact conversion factor (1 deciliter = 3.38140227 fluid ounce). See the formula, worked examples, conversion table, history, and common uses.
Deciliters to Fluid ounces converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
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 0.0001 / 2.95735296e-5.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Deciliters to Fluid ounces
Deciliter and Fluid ounce appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: Deciliter is 0.1 liter units, and a US fluid ounce is 1/128 of a US gallon.
Formula
fluid ounces = deciliters × 3.38140227018
This factor comes from each unit's defined relationship to the category's base unit: 1 deciliter equals 0.0001 base units, and 1 fluid ounce equals 0.0000295735295625 base units, so dividing one by the other gives the direct deciliter-to-fluid ounce factor of 3.38140227018.
Simple example
1 dL × 3.38140227 = 3.38140227 fl oz
1 deciliter = 3.38140227 fluid ounces.
Real-world example
10 dL × 3.38140227 = 33.8140227 fl oz
10 deciliters = 33.8140227 fluid ounces.
Conversion table
| Deciliter (dL) | Fluid ounce (fl oz) |
|---|---|
| 1 dL | 3.38140227 fl oz |
| 5 dL | 16.90701135 fl oz |
| 10 dL | 33.8140227 fl oz |
| 25 dL | 84.53505675 fl oz |
| 50 dL | 169.0701135 fl oz |
| 100 dL | 338.140227 fl oz |
Reverse conversion: Fluid ounce to Deciliter
3.38140227 fl oz × 0.2957352956 = 0.9999999999 dL
3.38140227 fluid ounces = 0.9999999999 deciliters.
deciliters = fluid ounces × 0.295735295625
For a page dedicated to this direction, see Fluid ounce to Deciliter.
Understanding the Deciliter (dL)
Deciliter is 0.1 liter units.
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 deciliter?
1 deciliter equals 3.38140227 fluid ounces, using the exact defined conversion factor rather than an estimate.
How do I convert deciliter to fluid ounce?
Multiply the deciliter value by 3.38140227. The converter above does this instantly to whatever precision you set.
How do I convert fluid ounce back to deciliter?
Use the reverse factor: 1 fluid ounce equals 0.2957352956 deciliters. You can also use the swap control in the converter above to flip the direction instantly.
What is a deciliter?
Deciliter (dL) is a unit of volume.
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 deciliter 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.