A US fluid ounce is 1/128 of a US gallon.
Fluid ounces to Kiloliters Converter — fl oz to kL
Convert Fluid ounce (fl oz) to Kiloliter (kL) using the exact conversion factor (1 fluid ounce = 0.0000295735 kiloliter). See the formula, worked examples, conversion table, history, and common uses.
Fluid ounces to Kiloliters 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.
Kiloliter is 1000 liter units.
Result = input x 2.95735296e-5 / 1.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Fluid ounces to Kiloliters
Fluid ounce and Kiloliter 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. Fluid ounce is most often used for us beverage container sizing (soda, water bottles).
Formula
kiloliters = fluid ounces × 0.0000295735295625
This factor comes from each unit's defined relationship to the category's base unit: 1 fluid ounce equals 0.0000295735295625 base units, and 1 kiloliter equals 1 base unit, so dividing one by the other gives the direct fluid ounce-to-kiloliter factor of 0.0000295735295625.
Simple example
1 fl oz × 0.00002957352956 = 0.0000295735 kL
1 fluid ounce = 0.0000295735 kiloliters.
Real-world example
10 fl oz × 0.00002957352956 = 0.0002957353 kL
10 fluid ounces = 0.0002957353 kiloliters.
Conversion table
| Fluid ounce (fl oz) | Kiloliter (kL) |
|---|---|
| 1 fl oz | 0.0000295735 kL |
| 5 fl oz | 0.0001478676 kL |
| 10 fl oz | 0.0002957353 kL |
| 25 fl oz | 0.0007393382 kL |
| 50 fl oz | 0.0014786765 kL |
| 100 fl oz | 0.002957353 kL |
Reverse conversion: Kiloliter to Fluid ounce
0.0000295735 kL × 33814.0227 = 0.9999990004 fl oz
0.0000295735 kiloliters = 0.9999990004 fluid ounces.
fluid ounces = kiloliters × 33814.0227018
For a page dedicated to this direction, see Kiloliter to Fluid ounce.
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.
Understanding the Kiloliter (kL)
Kiloliter is 1000 liter units.
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 kiloliters are in 1 fluid ounce?
1 fluid ounce equals 0.0000295735 kiloliters, using the exact defined conversion factor rather than an estimate.
How do I convert fluid ounce to kiloliter?
Multiply the fluid ounce value by 0.00002957352956. The converter above does this instantly to whatever precision you set.
How do I convert kiloliter back to fluid ounce?
Use the reverse factor: 1 kiloliter equals 33,814.0227 fluid ounces. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a kiloliter?
Kiloliter (kL) is a unit of volume.
Is the fluid ounce to kiloliter 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.
Where is the fluid ounce still used today?
United States (beverage, nutrition labeling)