Liters to Fluid Ounces
An instant liters-to-fluid ounces converter, with the formula and a reference table below.
| Liters | Fluid Ounces |
|---|---|
| 1 L | 33.814023 fl oz |
| 2 L | 67.628045 fl oz |
| 3 L | 101.442068 fl oz |
| 5 L | 169.070114 fl oz |
| 10 L | 338.140227 fl oz |
| 25 L | 845.350568 fl oz |
| 50 L | 1690.701135 fl oz |
| 100 L | 3381.40227 fl oz |
How to use
- Enter a value in the Liters field.
- The Fluid Ounces figure appears immediately — no button to press.
- Typing in the Fluid Ounces field converts back to Liters the same way.
- Use the reference table for the values that come up most often.
Liters to Fluid Ounces formula
The factor from liters to fluid ounces is 33.8140227.
fl oz = L × 33.8140227
Why this factor: the liter and the fluid ounce are both defined against the liter, so dividing one definition by the other gives 33.8140227 directly. Both definitions are set out in full below.
To go the other way, divide by 33.8140227 — or use the Fluid Ounces to Liters converter, which is the same calculation reversed.
Worked example
Take 2 L and multiply by the factor 33.8140227: the result is 67.628045 fl oz.
2 L × 33.8140227 = 67.628045 fl oz
The converter above does this for any value you type, in either direction.
What is a liter?
A liter is the everyday metric unit of volume, equal to the space in a 10 cm cube.
Definition: Exactly one cubic decimeter, so exactly 0.001 cubic meter. Accepted for use with SI but not an SI unit itself.
Where it is used: Fuel, beverages, engine displacement, and recipe volumes across the metric world.
What is a fluid ounce?
A US fluid ounce is a small liquid volume, one eighth of a cup.
Definition: Exactly one 128th of a US liquid gallon, so exactly 29.5735295625 milliliters.
Where it is used: Beverage cans and bottles, cosmetics, and small liquid quantities in the US.
Worth knowing: Measures volume, not weight — a fluid ounce of water weighs about 1.04 avoirdupois ounces. The imperial fluid ounce is 28.41 mL.
Liters vs Fluid Ounces
The liter is a metric unit while the fluid ounce is a US customary unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many fluid ounces are in a liter?
One liter equals 33.8140227 fluid ounces.
What is the formula to convert liters to fluid ounces?
Multiply the number of liters by 33.8140227. To reverse it, divide by 33.8140227 instead.
How do I convert fluid ounces back to liters?
Divide by 33.8140227, which is the same as multiplying by 0.0295735296.
How many fluid ounces are in 10 liters?
10 L works out to 338.140227 fl oz.
Is there anything to watch out for with fluid ounces?
Measures volume, not weight — a fluid ounce of water weighs about 1.04 avoirdupois ounces. The imperial fluid ounce is 28.41 mL.
How is the liter defined?
Exactly one cubic decimeter, so exactly 0.001 cubic meter. Accepted for use with SI but not an SI unit itself.