Fluid Ounces to Liters
Convert fluid ounces (fl oz) to liters (L). Both measure capacity and volume, and the conversion comes up in cooking, chemistry, fuel work.
The Formula
``
liters = fluid ounces × 0.0295735295625
fluid ounces = liters × 33.8140227018
`
One fluid ounce is 0.029574 liters, and one liter is 33.814 fluid ounces.
Conversion Table
| Fluid Ounces | Liters |
|---|---|
| 1 fl oz | 0.029574 L |
| 2 fl oz | 0.059147 L |
| 5 fl oz | 0.147868 L |
| 10 fl oz | 0.295735 L |
| 25 fl oz | 0.739338 L |
| 50 fl oz | 1.4787 L |
| 100 fl oz | 2.9574 L |
| 500 fl oz | 14.7868 L |
| 1,000 fl oz | 29.5735 L |
The Other Direction
| Liters | Fluid Ounces |
|---|---|
| 1 L | 33.814 fl oz |
| 2 L | 67.628 fl oz |
| 5 L | 169.0701 fl oz |
| 10 L | 338.1402 fl oz |
| 25 L | 845.3506 fl oz |
| 50 L | 1,690.7 fl oz |
| 100 L | 3,381.4 fl oz |
| 500 L | 16,907.01 fl oz |
| 1,000 L | 33,814.02 fl oz |
What Each Unit Is
Fluid Ounces (fl oz) — the US fluid ounce: exactly 29.5735295625 millilitres. One sixteenth of a US pint, descended from the wine gallon.
Liters (L) — exactly one cubic decimetre, or 0.001 cubic metres. A metric volume defined for trade; briefly redefined against the kilogram before reverting in 1964.
A Sense of Scale
A shot is 1.5 fl oz- A soda can is 12 fl oz
- A US coffee cup is 8 fl oz
- A large drink bottle is 2 L
- A car fuel tank is 45–60 L
- A bath holds about 80 L
Precision
The factor 0.0295735295625 is rounded. For engineering work carry more digits than the table above, and round only at the end — rounding at each step compounds.
Watch Out For
- A UK fluid ounce is 28.41 mL — close enough to confuse, far enough to ruin a cocktail.
In Code
`javascript
const fluidOunceToLiter = (value) => value * 0.0295735295625;
``
Where This Conversion Comes Up
- Cooking
- Chemistry
- Fuel
- Beverages
- Medicine
How Many Decimals Do You Need?
Rounding the factor costs accuracy, and how much depends on the factor. Converting 137 fl oz with the factor truncated at each decimal place:
| Decimals kept | Factor | 137 fl oz becomes | Error |
|---|---|---|---|
| 0 | 0 | 0 | 100.0000% |
| 1 | 0 | 0 | 100.0000% |
| 2 | 0.03 | 4.11 | 1.4421% |
| 3 | 0.03 | 4.11 | 1.4421% |
| 4 | 0.0296 | 4.0552 | 0.0895% |
The right number of significant figures is set by your input, not by the converter. If you measured fluid ounces to three significant figures, the answer in liters is only good to three — writing more digits claims precision the measurement never had.