Litres to Fluid Ounces Converter
Convert litres to US fluid ounces — 33.814 fl oz to the litre. Results update as you type; exact factors shown.
One litre is 33.814 US fluid ounces — see the exact factor, not a rounded rule of thumb.
How the litres to fluid ounces converter works
Volumes convert through the litre (exactly 1 dm³). The US gallon is exactly 3.785411784 L (231 cubic inches); the imperial gallon is exactly 4.54609 L. A US fluid ounce is 29.5735 mL, an imperial fluid ounce 28.4131 mL; a US pint is 16 US fl oz, an imperial pint 20 imperial fl oz.
The UK is metric for most trade and science but keeps miles, pints, stone and mpg (with the imperial gallon) in daily life.
Common volume conversions
| From | To | Units |
|---|---|---|
| 0.1 L | 3.3814 US fl oz | litres to US fluid ounces |
| 0.25 L | 8.4535 US fl oz | litres to US fluid ounces |
| 0.33 L | 11.1586 US fl oz | litres to US fluid ounces |
| 0.5 L | 16.907 US fl oz | litres to US fluid ounces |
| 0.75 L | 25.3605 US fl oz | litres to US fluid ounces |
| 1 L | 33.814 US fl oz | litre to US fluid ounces |
| 1.5 L | 50.721 US fl oz | litres to US fluid ounces |
| 2 L | 67.628 US fl oz | litres to US fluid ounces |
| 2.5 L | 84.5351 US fl oz | litres to US fluid ounces |
| 3 L | 101.4421 US fl oz | litres to US fluid ounces |
| 5 L | 169.0701 US fl oz | litres to US fluid ounces |
| 10 L | 338.1402 US fl oz | litres to US fluid ounces |
Units in this converter and their exact factors
| Unit | Symbol | One unit in litres |
|---|---|---|
| millilitre | mL | 0.001 litre |
| litre | L | 1 litre |
| cubic metre | m³ | 1,000 litre |
| teaspoon (metric) | tsp | 0.005 litre |
| tablespoon (metric) | tbsp | 0.015 litre |
| cup (metric) | cup | 0.25 litre |
| US fluid ounce | US fl oz | 0.0295735296 litre |
| US cup | US cup | 0.2365882365 litre |
| US pint | US pt | 0.473176473 litre |
| US gallon | US gal | 3.785411784 litre |
| imperial fluid ounce | imp fl oz | 0.0284130625 litre |
| imperial pint | imp pt | 0.56826125 litre |
| imperial gallon | imp gal | 4.54609 litre |
| cubic foot | ft³ | 28.316846592 litre |
FAQFrequently asked questions about volume conversion
How many fluid ounces in a litre?
33.814 US fl oz, or 35.195 imperial.
What is 500 mL in fluid ounces?
16.9 US fl oz — the standard water bottle.
Are US and UK fluid ounces different?
Yes. A US fl oz is 29.574 mL and an imperial one 28.413 mL — about 4% apart.
Is a fluid ounce a weight?
No, it is a volume. Only for water do the two roughly coincide.
How many fl oz in a 2 litre bottle?
67.6 US fl oz.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Physical Laboratory (NPL) — United Kingdom's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.