Liters to Fluid Ounces
Convert liters (L) to fluid ounces (fl oz). Both measure capacity and volume, and the conversion comes up in cooking, chemistry, fuel work.
The Formula
``
fluid ounces = liters × 33.8140227018
liters = fluid ounces × 0.0295735295625
`
One liter is 33.814 fluid ounces, and one fluid ounce is 0.029574 liters.
Conversion Table
| 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 |
The Other Direction
| 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 |
What Each Unit Is
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.
Fluid Ounces (fl oz) — the US fluid ounce: exactly 29.5735295625 millilitres. One sixteenth of a US pint, descended from the wine gallon.
A Sense of Scale
A large drink bottle is 2 L- A car fuel tank is 45–60 L
- A bath holds about 80 L
- A shot is 1.5 fl oz
- A soda can is 12 fl oz
- A US coffee cup is 8 fl oz
Doing It in Your Head
Multiply by 34. That is off by 0.55% — close enough to judge a
distance, a weight or a price, and not close enough to sign off on a drawing.
Exact Mental shortcut 338.1402 fl oz 340 fl oz 3,381.4 fl oz 3,400 fl oz
Precision
The factor 33.8140227018 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 literToFluidOunce = (value) => value * 33.8140227018;
``
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 L with the factor truncated at each decimal place:
| Decimals kept | Factor | 137 L becomes | Error |
|---|---|---|---|
| 0 | 34 | 4,658 | 0.5500% |
| 1 | 33.8 | 4,630.6 | 0.0415% |
| 2 | 33.81 | 4,631.97 | 0.0119% |
| 3 | 33.814 | 4,632.52 | — |
| 4 | 33.814 | 4,632.52 | — |
The right number of significant figures is set by your input, not by the converter. If you measured liters to three significant figures, the answer in fluid ounces is only good to three — writing more digits claims precision the measurement never had.