Fluid Ounces to Liters (oz to L)

Common questions

How many litres is a fluid ounce?

There are two answers, because there are two fluid ounces. An imperial fluid ounce, the one this page opens on, is exactly 0.0284130625 litres, which is 28.4130625 mL. A US fluid ounce is exactly 0.0295735295625 litres, which is 29.5735295625 mL. The imperial ounce is the smaller of the two by about 4%, so using the wrong one on 32 oz is the difference between 0.909218 L and 0.946352946 L. Both figures are definitions rather than measurements, which is why the converter prints every digit of them instead of rounding to three.

How do I switch this page to US fluid ounces?

Choose Fluid ounce (US) in From; To stays on Liter and the answer updates. Both fluid-ounce entries use fl oz, so the qualified names identify their conventions. This focused page opens on Fluid ounce (imperial) to Liter. Confirm the source convention explicitly; the converter does not infer it from a country, recipe, bottle or label.

What are 8, 16 and 32 fluid ounces in litres?

For imperial fluid ounces: 8 is exactly 0.2273045 L, 16 is 0.454609 L, 20 is 0.56826125 L, one imperial pint, and 32 is 0.909218 L. The corresponding US fluid-ounce counts are exactly 0.2365882365 L, 0.473176473 L, 0.59147059125 L and 0.946352946 L. These particular values fit the twelve-significant-digit display. Other terminating decimals can still round: 33.8 US fl oz is exactly 0.9995852992125 L and displays as 0.999585299213 L, so 33.8 is an approximation to the US fluid-ounce count in one litre. Copy result copies the displayed headline without digit-grouping commas; each visible conversion row has its own Copy button. Displayed and copied values round to twelve significant digits. If native copying fails, a complete selectable summary identifies the input, selected pair and conventions and includes every unit in the category, including uncommon units.

Is a fluid ounce the same as an ounce of weight?

A fluid ounce measures volume. An avoirdupois ounce measures mass, exactly 0.028349523125 kg, handled under Mass. Conversion between the dimensions needs a supplied density for the material and conditions: mass = volume × density in matching units. Unit Converter does not perform that step. Grams to Cups uses named ingredient conventions and its own rounded US cup of 236.588 mL; it does not accept an arbitrary density. Unit Converter uses the exact US cup of 236.5882365 mL.

How do I convert litres back to fluid ounces?

Press the button between the two boxes, labelled Swap units, and the page converts litres into whichever fluid ounce is selected. One litre is 35.1950797279 imperial fluid ounces or 33.8140227018 US fluid ounces, half a litre is 17.5975398639 or 16.9070113509, and two litres is 70.3901594557 or 67.6280454037. Neither division gives a short decimal, so the converter shows twelve significant digits and you round where your job needs it.

Which fluid ounce does my bottle or recipe mean?

Use the convention explicitly specified by the source; country, container and recipe type alone do not establish it. An imperial pint is exactly 20 imperial fluid ounces, 0.56826125 L, while a US liquid pint is 16 US fluid ounces, 0.473176473 L. A supplied metric quantity can be entered directly: 500 mL displays as 17.5975398639 imperial fluid ounces or 16.9070113509 US fluid ounces. The converter cannot identify an ambiguous label.

Where are the imperial pint and gallon in the list underneath?

Behind the switch marked Show 5 more, in the row under the converter. By default the list below the answer holds the common volume units: millilitres, litres, cubic metres, teaspoons, tablespoons, US fluid ounces, cups, pints, quarts and gallons. Turning that switch on adds the imperial pint, the imperial gallon, cubic inches and cubic feet. The imperial fluid ounce itself never appears in the list on this page, because the list leaves out the unit you are converting from.

Does anything I type leave my browser?

Your input and converted values are calculated in the browser and are not uploaded by the converter. The definitions arrive with the page, so conversion needs no external data lookup and keeps working offline after the page has loaded. The core conversion needs no account. This focused page opens on Fluid ounce (imperial) to Liter (L), while preserving the main converter’s saved unit pair. When storage is usable, a saved value and uncommon-unit preference can travel between pages. Its suffix must still match From. Valid deliberate scalar edits can save those fields after a short delay; invalid or incomplete drafts preserve the saved record. Unusable or conflicting records remain until you use Forget saved settings, which keeps the current conversion on screen.