Unit-To-Unit Fluid conversion

Litres to US Fluid Ounces

1 litre = 33.814022702 US fluid ounces

One litre is 33.814 US fluid ounces. Hydration targets given as "two litres a day" become an awkward 67.6 fl oz in US units.

Formula fl oz = L × 33.814022701843

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Type in either field — the other updates on every keystroke. Need other units? Open the full fluid converter.

Litres to US Fluid Ounces — quick reference
LitreUS fluid ounce
1 L33.814023 fl oz
2 L67.628045 fl oz
3 L101.442068 fl oz
4 L135.256091 fl oz
5 L169.070114 fl oz
10 L338.140227 fl oz
15 L507.210341 fl oz
20 L676.280454 fl oz
25 L845.350568 fl oz
50 L1690.701135 fl oz
100 L3381.40227 fl oz
500 L16907.011351 fl oz
1000 L33814.022702 fl oz
US Fluid Ounces to Litres — reverse
US fluid ounceLitre
1 fl oz0.029574 L
2 fl oz0.059147 L
3 fl oz0.088721 L
4 fl oz0.118294 L
5 fl oz0.147868 L
10 fl oz0.295735 L
15 fl oz0.443603 L
20 fl oz0.591471 L
25 fl oz0.739338 L
50 fl oz1.478676 L
100 fl oz2.957353 L
500 fl oz14.786765 L
1000 fl oz29.57353 L

Worked examples

Common values
SituationFromTo
Small bottle0.25 L8.454 fl oz
Water bottle0.5 L16.91 fl oz
One litre1 L33.81 fl oz
Large bottle1.5 L50.72 fl oz
Soda bottle2 L67.63 fl oz
Water jug3 L101.4 fl oz

Mental-math shortcut

Multiply by 34, which reads about 0.6% high. 2 L is about 68 fl oz, against an exact 67.6.

Where this conversion comes up

Bottles sold by the litre abroad appear in fluid ounces in the US. A 1.5 L bottle holds 50.7 fl oz.

Common mistakes

A litre is 35.2 Imperial fluid ounces but 33.8 US ones. Do not use 35.27, which is the number of weight ounces in a kilogram.

Background

A litre is exactly one cubic decimetre, 1,000 cm³. The name dates from the French metric reforms of the 1790s.

Learn more

One litre is 33.81 US fl oz, so a 2-litre bottle holds 67.6 fl oz.

Related guides: Imperial vs metric: differences and quick conversion tricks · US cups to grams: flour, sugar, butter and more · How to scale a recipe up or down: the maths and the science · Top 20 liquid ingredients in cooking and how to measure them · US vs UK weights and measures: gallons, pints and tons

Frequently asked

How many US fluid ounces are in a litre?
1 litre = 33.814022702 US fluid ounces. In the other direction, 1 US fluid ounce = 0.02957353 litres.
What is a litre?
A litre is one cubic decimetre — 1,000 cubic centimetres. It is accepted for use with SI and is the everyday volume unit for beverages and fuel in most countries.
What is a US fluid ounce?
A US fluid ounce is 1/128 of a US gallon, or 29.5735295625 millilitres — slightly larger than the Imperial fluid ounce.
How many fluid ounces is a litre?
One litre is 33.81 US fluid ounces.

Related fluid conversions

US Gallons to Litres Litres to US Gallons US Fluid Ounces to Millilitres Millilitres to US Fluid Ounces US Cups to Millilitres US Pints to Millilitres US Quarts to Litres